Questions tagged [projectile]

This tag is for questions relating to projectile, object moving through space due to the exertion of a force. The path of a projectile is called its trajectory.

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Projectile launch question [closed]

The question refers to the following information: What would the Olympic Games on the Moon be like? This article was recently published in the magazine Mundo Estranho, Editora Abril, written by Tiago ...
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Two bodies of different mass are passing through viscous fluid. Which will achieve terminal velocity faster and why? How to calculate time?

Two bodies of different mass are passing through viscous fluid. Which will achieve terminal velocity faster and why? How to calculate time? My personal thought is that terminal velocity is ...
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Physics of tennis hit

If one takes notice the tennis players hit the ball on the right corner that way: Their last step before the hit is on the right foot, then they hit and then their left foot goes up in the air about ...
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A rubber ball gets thrown horizontally from $H$ height find the horizontal distance of the ball till it hits the ground [closed]

There's a rubber ball that has mass $m$, it gets thrown horizontally (from $H>0$ height) with initial velocity of $\vec V(0) = V_0 \hat X$ ($\hat X$ is the axis, meaning horizontal) in addition to ...
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Determine path of golf ball

All the below is based on the paper the physics of putting from A.R. Penner. The goal is to determine the path of a golf ball. A golf ball is launched with velocity 𝑣 and a launch angle of 𝛽 towards ...
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Generalized projectile motion [closed]

Toss an object from the surface of earth at speed $V_1=\sqrt{MG/R}$. Here $R$ is the radius of the earth and $M$ is the mass of the earth and $G$ is universal gravitational constant. How long will it ...
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Can a small amount of super-compressed gas cause much cooling upon rapid expansion and contact? [closed]

Generally, a small amount of mass in the range of $0.001$ - $0.01$ kg, even if chilled to tens of degrees below absolute zero in a hypothetical case to test extremes, even with 5000 specific heat and ...
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Projectile with air resistance analysis

If a projectile is thrown neglecting air resistance, then the horizontal distance covered by it in ascent and descent is same. if we consider air resistance, then i want to compare horizontal distance ...
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Determine the trajectory of a ball on a golf green that is not level

I want to determine the path of a golf ball when someone "puts" from a location on the "green" to the "hole". The distance between the location of the ball and the target/...
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How can I approximate a character's jump in terrestrial circumstances in 2 dimensions?

I'd like to start with the 2-dimensional case to establish simple algorithms for an engine in a simulated environment to approximate physics of a human-sized character jumping long distances with ...
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1 answer
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Is the drag force to raindrops at the terminal velocity quadratic or linear?

Air drag is approximated by the following equation $$F=\frac12 \rho A v^2 C_D$$ Depending on the drag coefficient $C_D$, this force may be linear or quadratic with respect to velocity $v$. If $v$ is ...
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Equation of motion with air resistance

If I search for air resistance on a falling object, I find texts stating that it is proportional to the velocity. $$F=mg-kv$$ Is this accurate or approximate? Some texts say that when the speed is ...
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Finding How to Transform a Plane to Reflect a Trajectory through a Given Coordinate

So, for context, I am trying to analyze how this basketball machine works: https://www.youtube.com/watch?v=FycDx69px8U I have a basic understanding of how to calculate the new velocity of the ball ...
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Trajectory with non-trivial barrel length taken into account

I have pretty much the same question as this: Finding the Angle of Launch for a Cannon Projectile to Hit a Specific Point It wasn't answered back then, and I only found it after I made my own initial ...
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What is the terminal velocity of coin

Very little work has been done at my office for the past few weeks, as we've been bogged down in a debate on the terminal velocity of a coin (the coin in question is a local one, of 9.2g, 28.5mm ...
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Can a bullet return to the starting point (like a boomerang) assuming it is horizontally fired?

Consider a bullet having special aerodynamic shape was fired with a speed of 800 m/s. Is it possible for a bullet to come to the point where it is fired due to its aerodynamic shape. It is assumed ...
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Can a bullet come to the starting point assuming it is horizontally fired? [closed]

Consider a bullet having special aerodynamic shape was fired with a speed of 800 m/s. Is it possible for a bullet to come to the point where it is fired due to its aerodynamic shape. It is assumed ...
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Which forces act on a ball in the air (including air friction) including their equation? [closed]

I am trying to write a ballistic throw simulation with the forces which act on the ball I take into consideration being the gravitational force, and drag. I know that the Magnus effect and another ...
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Can a particle move in an upward parabola fashion naturally?

I recently studied projectile motion which consists of only downward parabolas. But I was wondering whether is it possible for a particle to go in a upward parabola provided that the particle doesn't ...
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Calculate Projectile impact with a moving Target [closed]

I'm trying to solve the classic shoot moving object issue in 3D Space, but with acceleration and gravity added to it. I already tried several ways approaching the correct calculation, yet I face the ...
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1 vote
2 answers
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Explosion of a projectile

The question is as follows: A projectile is moving at 20 m/s at its highest point, where it breaks into equal parts due to an internal explosion. One part moves vertically up at 30 m/s with respect ...
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A projectile in a rocket with constant proper acceleration

I am a beginner in general relativity. I read the chapter 9.2 in Relativity make relatively easy vol 1 by Andrew Steane. There is a rocket which accelerates upwards with constant proper acceleration. ...
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Pendulum ball hitting a ball at an angle

I conducted an experiment and I am using a pendulum to swing a ball from theta back from a line perpendicular to the horizontal see figure 1. Figure 1 the mass not attached to the pendulum will be ...
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Damage Equations for Projectiles with Small Velocities

I'm working on a personal project that happens to involve projectiles impacting an aluminum surfaces. The projectile velocities I am dealing with are relatively small compared with meteoroid ...
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Terminal velocity of a metal sphere in water

I am trying to figure out the terminal velocity of a metal ball dropped into water or oil. After searching a bit on the internet, I came to the conclusion that I needed to use Stokes' Law and ...
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Analytic solution to geometric swinging problem

I came across this problem in the context of developing a game about a brachiating gibbon, swinging from handhold to handhold. (for context.) I was looking for a way to calculate what the gibbon's ...
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Why spinning bullet is more stable in air?

I found out about stagnation point recently, it is an arbitrary edge or point where the stream of air molecules parts. I was wondering could a spinning bullet affects the stagnation point to improve ...
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Regarding the meaning of the slope in projectile motion graph

The equation for distance travelled by the object in projectile motion (neglecting air resistance) is $$R_1=\frac{V_0^2 \sin(2\theta)}{g}$$ where $V_0$ is initial launch velocity. Question is that I'...
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Path of least action subject to an initial and a final conditions

I would like to find the path of least action subject to a initial and final condition. I don't know whether this is possible and meaningful at all, but here goes: Let us say we have a particle moving ...
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Projectile motion - Initial $y$-velocity to hit $(x,y)$ with given $x$ velocity

I want a function $f(v_{0x}, x_{end}, y_{end})$ that computes the starting velocity component $v_{0y}$ required to make the projectile land at the specified position $(x,y)$. $v_{0y}$ is thus the ...
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Taking drag into consideration, how does mass affect horizontal range given that the impulse applied is always the same? [closed]

If two objects, one light and one heavy but otherwise identical, are given the same impulse from rest and begin to travel horizontally through a resistive fluid, which object makes it farther?
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Does muzzle velocity change once it exits the barrel?

I'm doing an experiment with a compressed air cannon and I'm finding that the velocity I gathered using the displacement from the projectile and the time it took to land, differed greatly from the ...
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2 votes
1 answer
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Can motion on an inclined plane be modelled as a projectile motion?

I'm trying to solve this problem from Halliday & Resnick in a creative way: A block is projected up a frictionless inclined plane with initial speed $v_0 = 3.50$ m/s. The angle of incline is $\...
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How to calculate the surface heating of the ball thrown in different fluid mediums like air and water?

Let's say a ball is thrown at a certain velocity, then it follows a projectile motion and falls on the surface. Now, during this entire flight how can we calculate the temperature rise that happens in ...
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6 votes
7 answers
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Why do elastic balls bounce?

Can someone please explain the process of a ball bouncing in terms of Forces? First, it doesn't make sense to say that the normal force is greater than that of the upwards force. When the ball hits ...
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Mass + velocity to pressure. How to measure pickleball flex without hurling it?

I want to know how much a pickleball (it's like a whiffleball) compresses when it hits the floor. I can't afford a 500,000 fps camera, so maybe an approach using basic principles would work. I also ...
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1 vote
1 answer
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How can I calculate the intercept direction of a constant accelerating missile?

I'm simulating missiles in 3d space and want the missiles to intercept a target which has constant velocity. Given the targets velocity is "u" a vector and the missiles acceleration rate is &...
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When a ball is dropped on a floor is that harmonic motion?

From Simple Harmonic Motion, we conclude that acceleration is proportional to its distance and the sign is negative. We also know that at equilibrium position $dU/dx=0$. Now, if we think a ball is ...
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Projectile flight range in different atmosphere

If we change atmosphere density from 1 atm to 50 atm, how much would cannon's firing range change? Assuming round ball as projectile, 2 km effective range in current atmosphere. There seems to be two ...
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Trying to find the equation for a kickserve. Need to start by finding the equation to a ball bouncing

I am currently in my last year of high school working on an exam paper for IB HL Mathematics and I am having issues with a certain area of physics/math. I am trying to model a kickserve in tennis on a ...
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Effect of adhesive on ballistic fabrics

Adhesive is applied to "soft" ballistic fabrics (like kevlar or even fiberglass) in order to decrease bulge when being hit by a projectile. What would be the effect of gluing layers of ...
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Why does the slant range become 0 for the given relation?

I was working with coefficient of restitution, and was met with this problem from my textbook. Since I found it pretty interesting, I decided to solve it symbolically. I let $v_0, e, \theta$ be my ...
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Final velocity and length of a projectile impacting and passing through a target slab?

I want to know the approximate final velocity $v_f$ and length $L_f$ of a projectile that impacts and passes through a slab of given thickness $D$. This is my attempt to solve the problem so far. I ...
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1 vote
1 answer
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Finding the initial velocity given angle and distance [closed]

I am trying to find the initial velocity of a projectile, only having been given the angle and the distance. I am to assume no incline and no air resistance. Which methods am I to use in order to get ...
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1 vote
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Finding angle of projectile given a distance (with air friction)

So, I'm making a game. The game has archer in it. Arrows are simulated in 2D, $(x,y)$ An archer acquires a target and needs to know at what angle he needs to tilt his bow for the arrow to land at the ...
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Maximum theoretical displacement from a ruler catapult

I am considering giving my students the following problem: Assume we have a ball placed upon a ruler, residing on a table. Now we drop another ball from an height $h$ onto the edge of the ruler. If $...
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Math behind throwing a ball into the basket

I’m assuming we would have to account for gravity and write a function that would create that arc like throw. I have very sparse knowledge about this and I would like to know on how to go about this ...
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1 vote
1 answer
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How to know which solution is physical?

When solving the expression for displacement of an accelerating object and solving for the time variable: $$v_it+\frac{1}{2}at^2=d$$ $$v_it+\frac{1}{2}at^2-d=0$$ $$t=\frac{-v_i\pm \sqrt{v^2_i+2ad}}{a}$...
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Displacement of a Projectile Along a Vector

I've been stuck on this problem for more time than I'd like to admit, and I feel like I'm overcomplicating the solution, or just not understanding the concept. I have a projectile in motion in three-...
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Velocity of projectile with both quadratic and constant resistive force

Suppose we have a projectile of mass $m$ that impacts a material with velocity $v_0$. As it travels through the material it is subject to the resistive force $F = \alpha v^2 + \beta$. How can I ...
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