# Questions tagged [kinematics]

The description of the movement of bodies by their position, velocity, acceleration (and possibly higher time derivatives, such as, jerk) without concern for the underlying dynamics/forces/causes.

3,404 questions
Filter by
Sorted by
Tagged with
29 views

### How would the graph look like? [closed]

How do i sketch a graph of Kinetic Energy vs. Mass provided that momentum is constant? Pretty sure this is a basic question but i and my classmates can't get to a solution
30 views

### Solving an infinitely decaying propelling system [closed]

I am a HK secondary school student who is taking part in the HKPhO training in my school. I was doing some training questions and struggled with this question: A car with initial speed $v_0$ is ...
1k views

### Meaning of negative time

Whenever we graph time along a $x$-axis, we graph it along negative and positive $x$-axis both. So what does a negative time mean in the negative case axis? What does the negative sign indicate?
52 views

### Finding velocity from total linear acceleration

I am new to this platform so I apologize if I am asking question in an incorrect manner I am not a physic student hence the reason I am here to clarify some of my doubts. I have this idea of using an ...
69 views

### Approximating the angle between the trajectory [closed]

I started to learn physics this semester and I found the following task: A contestant is participating in a half-maraton tournament(straight line length $L =21095$ meter) running in a zig-zag manner (...
30 views

### Basic kinematics task with falling point equation [closed]

Suppose the equation of falling point has form of: $$\frac{dv}{dt} = g - kv^2$$ Calculate the terminal velocity Determine the relation between time and velocity I'm taking an introduction to ...
51 views

### Does it take more force to travel up the stairs or to travel up the slope next to it? [closed]

The answer might depend on numerous factors (steepness of steps, steepness of stairs etc.) Consider the length of the stairs and slope equal.
79 views

### How can the SUVAT equations be derived from Newton’s laws of motion?

I would argue that the SUVAT equations, which correctly describe all constant-acceleration motion (including hypothetical situations governed by unusual laws of dynamics), cannot possibly be derived ...
33 views

### Relativistic free fall

if I wanted to calculate how far a proton moving at horizontal speed of $0,96 c$ would fall (due to gravity $g$ vertically) passing through a space of $1$m (horizontally) - how do I calculate that? Do ...
87 views

### Radius of curvature of a particle with respect to another

A question requires you to find the radius of curvature of a particle with respect to another at a specific instant; the position vectors of both particles(varying with time) are also provided. The ...
71 views

### Find final velocity of an object on an inclined plane without knowing the mass [closed]

How do I find final velocity of an object on an inclined plane without knowing the mass of the object assuming that I have the degree, duration, and initial velocity? Without the mass, how can I solve ...