# Tagged Questions

Object moving through space due to the exertion of a force.

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### I need results or to conduct a simple experiment for a dynamics problem involving the range of a projectile launched from a pendulum

I have created a model to show how the maximum range of a projectile varies with respect to the velocity and angle of when the object is launched from a swing. I now need to compare these results ...
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### Can an accelerometer be used to determine orientation of a rocket under power?

I saw a project on Hackaday featuring a model rocket with moveable fins to stabilize the rocket's trajectory: Hackaday. The goal was to arc the rocket to a horizontal trajectory and keep it there. In ...
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I have come across a question that asked me to find the radius of curvature of a projectile. As far as I know, the path of a projectile is a parabola and I have found mention of the radius of ...
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### Grade 12 Projectile Motion Problem [on hold]

A cannon is placed 100 m from the edge of a cliff that drops 150 m to a canyon floor. Exactly 4 seconds after being fired the cannonball misses the edge of the cliff on its trajectory to the canyon ...
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### Projectile Motion

I know the angle at which a projectile is launched, how far it needs to go, and also the maximum height. How can I find the initial velocity needed (disregarding air resistance)? Currently, I am ...
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### Projectile motion maximum distance to origin

Is there an elegant or easy way to derive the maximum distance from the origin to a point of the parabola created by projectile motion (assume initial position is the origin)? Other than ...
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So, the problem is straightworward when we suggest that air resistance force is constant: $$\vec F = \frac {\vec V_1 - \vec V_0} {t} m / b$$ $$\vec V_0, \vec V_1 - \text {initial and final ... 4answers 2k views ### How much does the Earth's rotation affect a golf ball? When launching rockets into space, they start straight but begin to lean, I assume due to the Earth's rotation. For something on a much smaller scale, such as a golf tee, is there a measurable ... 3answers 2k views ### Throwing a ball upwards in an accelerating train If I throw a ball upwards to a certain height in an accelerating train, will it end up in my hand? At the moment I release the ball, it will have a velocity equal to that of the train at that instant. ... 1answer 5k views ### Add air resistance to projectile motion I am given an initial x and y position and initial velocity and I was asked to graph the trajectory in 1 second intervals. This is what I have so far: If x_0 = 1, v_{0x} = 70, y_0 = 0, v_{0y} = 80, ... 1answer 60 views ### Can we reverse the direction of a ballistic missiles [closed] Is there any way that we can reverse the direction of a missile during war or fight. Just think if we make a platinum or hard metal structure like skate board ring ,the missile will fall on it and ... 1answer 36 views ### Deriving an equation for a projectile launched on a ramp using two springs I had a physics lab where I had to build a sling shot sort of devices on a ramp. Basically, I have a ramp, with two springs attached on the end and the two strings are attached to a piece of wood. I ... 2answers 194 views ### Projectile motion - calculate landing angle A projectile is launched at a 45^\circ angle, aiming for a target at a distance of 15 feet away from, and 2 feet below the starting position. I'm looking for equations to determine: The ... 2answers 53 views ### Projectile motion of a grenade [closed] A small hand grenade is thrown with an initial speed V0 forming an angle ɵ with the horizontal ground. Assume that at its highest point the grenade explodes and is split into two identical ... 2answers 25 views ### In Golf, What Influences More On How Far The Ball Travels? Most of us are aware of the general concept that the harder you hit something, the farther it usually travels. (let us suppose we are neglecting any air resistance and friction that happens) And from ... 3answers 41 views ### How to calculate projectile path having starting and end point? I want to show a projectile path between two points (x1,y1) (x2,y2 ) on graph. Here I know two points, start point and end point. I tried solving by taking launch angle as 45 degree, it doesn't seem ... 1answer 62 views ### If a being was able to swallow itself, where would it go physically? [closed] if a being was made from a special type of material that allowed it to stretch and was very flexible, if it were to swallow itself, where wold it go. I mean the physical aspects of it since it wont be ... 2answers 161 views ### Fired a bullet upwards, can it fall down and kill me? I know that if something is thrown up with a velocity v, it comes down with the same velocity as long as its motion faces no resistance. So is it possible for me to fire a bullet and be killed if it ... 1answer 2k views ### A ball is thrown up, and a second ball is dropped- what is the maximum initial velocity of the first ball so that [closed] This question only exists in one dimension, the y axis. A ball is thrown upwards with an initial velocity V_o from a roof with height h. One second later, a second ball is dropped from the same ... 1answer 45 views ### Angle required to hit the target in projectile motion Consider the problem of projectile motion where the angle to hit a target (x,y) is asked, once given the initial velocity magnitude v_0. The projectile is fired from the point (0,0). Here is ... 2answers 567 views ### Tangential and radial acceleration in projectile motion I'm currently learing kinematics, specifically projectile motion and as an example in my textbook is a bullet fired at some angle. I understand the derivation of formulas to describe that motion and ... 2answers 74 views ### Solving Projectile Motion Equation with Drag [closed] Previously, I was helped in solving a projectile motion equation to model the velocity of the projectile with respect to distance with drag taken into account by using differential equations (which I ... 2answers 458 views ### Projectile, air resistance and wind So for my school project I am working on a projectile simulator and air resistance. So I have looked at this. Equations for an object moving linearly but with air resistance taken into account? ... 1answer 29 views ### Finding acceleration due to gravity of a 2D projectile Can I find acceleration due to gravity of a 2D projectile given only the peak of the projectile, the point of impact, initial angle, and initial velocity? Specifically what is missing is the initial ... 1answer 48 views ### Uncertainty in Range of Projectile [closed] If we are given that a projectile is launched with velocity 10m/s at an angle of 45^\circ and uncertainty in angle is of 0.5^\circ . What is the uncertainty in the range of projectile. The problem ... 2answers 97 views ### Explicit Function for Bouncing Ball [closed] I was wondering if it's possible (and if so, how would you go about it) to write an explicit function for the position of a ball bouncing as a function of time (assuming a coefficient of restitution 0 ... 4answers 172 views ### Does the physical cross section of a projectile have an effect on the motion of a target? [closed] Why can a baseball (moving with kinetic energy) move a baseball glove (or how a hammer displaces a nail),. yet a bullet can't move a person? I know the laws of conservation of energy, deformation, ... 2answers 36 views ### How can I find the maximum height if I have changing acceleration? I'd like to find the maximum height that a projectile reaches in motion if I have a non-constant acceleration. How would I do this? What variables do I need to know in order to calculate this? ... 1answer 43 views ### Instantaneous Velocity after bouncing off a wall I have a ball, and I throw it at a wall as a projectile (assume that the ball's position the instant the journey begins is on level-ground). The ball hits the wall with a velocity that is at right ... 3answers 59 views ### If two objects have the same drag coefficient, but one is much heavier, would it fall faster? Not sure this is a good example but imagine we have two feathers, both with exactly the same drag coefficient, they have the exact same shape and everything, but the only difference is that one of ... 2answers 21 views ### Model velocity as function of distance in object subject to drag and propulsion Given an initial speed v_0 and acceleration \frac{dv}{dt}|_0=a_0, I need to find velocity as a function of distance knowing that Drag is  D = Av²  Propulsion is P = Bv + C I already found ... 0answers 31 views ### How to find out diameter of some crater on moon using meteorite size and velocity? I am looking for a formula to find out the diameter of a crater using meteorite size and velocity. 1answer 151 views ### Why golf balls travel faster if they spin? From the book I have been given to read I found that balls spin due to the centripetal force but i am confused about how exactly do the resultant force causes it to spin and move forward about the ... 1answer 49 views ### Satellite and gravitational acceleration According to 0.5gt^2 object will fall 5m in first second. Earth curve is 5m for 8km So if we can project object at 8000 m/s speed object will never fall into ground. Above scenario is correct ... 1answer 68 views ### Range of ballistic missile on flat world The range of the Trident 2 submarine-launched ballistic missile is stated to be at least twelve thousand kilometres - the exact figure is classified, but taking it as 12,000 km exactly for purposes of ... 1answer 438 views ### How can the Air friction force be applied to an object? Suppose we have an object and we throw it straight upward in the air. How do we apply the Air friction force to this object while moving upwards and after that downwards? Sorry if it's easy because ... 4answers 96 views ### Ball dropped from train [closed] A ball is dropped of a train traveling with high velocity, to a man standing near the track, the bank A) falls down vertically B) moves horizontally C) follows an elliptical path D) parabolic ... 1answer 95 views ### Projectile time of ascent not equal to the time of descent? Why is the time of ascent less than the time of descent in a projectile motion. I understand that while going up the air resistance and gravity act downwards and while coming down gravity is ... 1answer 192 views ### How to solve Kinematics: two objects meeting in the air A water balloon is dropped from the top of a 200m high tower. An alert archer at the base of the tower sees the balloon being dropped, waits for 5s, then shoots an arrow at 40m/s straight up towards ... 2answers 2k views ### Throwing a Football. Is it truly parabolic? Driving into work, I started thinking about the arc of something being thrown and was puzzled about how gravity's affect is squared per second for falling bodies. Intuitively that implies the shape ... 0answers 16 views ### Projectile motion. Scattered trig ratios, unable to condense [closed] I have this question from university to complete: A rugby player kicks a ball from the ground aiming to get the ball over the horizontal bar and between the vertical posts. The ball is 50 meters away ... 1answer 74k views ### Solving for initial velocity required to launch a projectile to a given destination at a different height I need to calculate the initial velocity required to launch a projectile at a given angle from point A to point B. The only force acting on the projectile after launch will be gravity – zero air ... 1answer 145 views ### Projectiles on inclined planes with coefficient of restitution [closed] This is the problem I am currently attempting. So far, I've resolved the velocity parallel and perpendicular to the plane to get, perpendicular: u \sin \theta upon launch and -u\sin \theta on ... 1answer 37 views ### Calculate final velocity for vertical projectile with air resistance I am struggling to figure out how to calculate the final velocity of a projectile that is shot vertically upwards and then let fall down again to the starting point. I can easily calculate this in ... 2answers 85 views ### Maximize time of flight and range at the same time in projectile motion Given the equations of projectile motion (no air resistance), it is easy to find the launching angle theta that produces the maximum range. That angle is 45 degrees. The maximum time of flight is ... 2answers 115 views ### In what direction should you throw a 1Kg uniform sphere in order to put it into lower earth orbit? [closed] If you are standing on earth's surface, in what direction (and at what speed) should you throw a 1Kg uniform sphere of radius 0.1 meters in order to put it into lower earth orbit? Assume that there ... 2answers 42 views ### Projectile motion problem, insufficient known variables [closed] I have a physics problem related to projectile motion, I am having difficulties figuring out how to find the initial speed in the x and y directions, as well of the height of the drop. I've tried ... 4answers 10k views ### Finding maximum height of projectile motion using potential/kinetic energy I'm having some difficulty understanding how to find the maximum height using conservation of force. This is the picture I'm looking at: and this is how you find it:$$\begin{align*} ...
Consider the solution to the equation of motion for a particle with a constant acceleration: $$x(t) = x_0 + v_0t + \frac{1}{2}at^2.$$ If I let $t \rightarrow -t$, then the equation becomes:  x(-t) ...