# Kinematics plus a little extra

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1. Jul 14, 2015

### Entr0py

1. The problem statement, all variables and given/known data
I was wondering that, if you are standing above a bridge with a height h and throw a rock in your hand with mass m and initial velocity v naught of 0, could you calculate how big of a splash said rock makes when it hits the water?

2. Relevant equations

Not sure, I'm guessing kinematics equations
3. The attempt at a solution
Well maybe I could plug in values for mass, initial velocity, final velocity, acceleration. But I don't know if it's possible to find how big (what is the radius) of the splash the rock creates.

Last edited: Jul 14, 2015
2. Jul 14, 2015

### PeroK

Do you think the size and shape of the rock might be relevant?

3. Jul 14, 2015

### Entr0py

Of course, and thanks for pointing that out. Let's say the rock is a perfect sphere and what do you mean by its size? Its mass, length, volume?

4. Jul 14, 2015

### PeroK

By "size" I mean how big it is.

5. Jul 14, 2015

### Entr0py

Let's say it's x meters tall.

6. Jul 14, 2015

### PeroK

7. Jul 14, 2015