Verified answer

Seems like a straight forward problem...

You are using Newtons Law Of "Conservation of Momentum" so thats one way to approach it using the Kinetic Energy formua of 1/2*m*v^2...

but I recomend since the experiment is based on free fall the only accleration acting on it is gravity of 9.8 m/s^2...

So try this formula,,,

v = u + a*t (here v=final velocity, u=intial velocity & t=time)

use that to get the answers with your data & finally use:

p = m*v (after finding final velocity (v) to get momentum)

The units for,

velocity (v/u) = m/s

momentum (p) = kgm/s^2

acceleration = m/s^2

I hope that works cuz thats how I did it in last year in engineering physics...

If you need more info just write me a msg...

Oh yeah so so I