# 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.

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### Maximum range of a projectile on an inclined plane with explain [closed]

I have tried everything searched the internet but unable to find a proper solution to this question
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### Finding the mass of an egg from impulse necessary to break it (from dropping it) [closed]

I came across this simulation from https://www.physicsclassroom.com. It didn't say how much force was necessary to break the average egg, so I looked it up (link): It takes 25 Newtons to break an ...
254 views

### How do you derive $v_f^2 = 2ad + v_i^2$ from $v_f = v_i + at$ and $d = v_it + (a/2)t^2$?

I'm trying to use substitution to find the equation Vf^2 = 2ad + Vi^2 from Vf = Vi + at and d = Vit + a/2(t^2), but I get stuck understanding part of the math. I've attached a picture, and you can see ...
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### 2-D motion Question [closed]

A bottle dropped from a balloon reaches the ground in 20 s. Determine the height of the balloon if (a) it was at rest in the air and (b) it was rising with a speed of 50 m/s when the bottle was ...
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### Tracking the path of two point masses through time under the influence of gravity and with no initial velocities [duplicate]

Given the point mass $p_1$ at $(0,0)$ with mass $m_1$ and the point mass at $p_2$ at $(r,0)$ with mass $m_2$ how would you find the positions of $p_1$ or $p_2$ at any time. My first thought was to ...