A ball of mass .3 kg is dropped from a height of 10m. Its momentum when it strikes the ground is?

Question

I know p=mv
how would I find velocity for this problem?

Thanks in advance for your help.

Answer 1

Use conservation of energy.

vf^2=Vi^2+2gh
vf= sqrt (2*9.8*10)

Answer 2

potential energy = kinetic energy
mgh=1/2 mv^2
cancel out mass
plug in gravity, height
solve for v

Answer 3

a ball of mass 5kg is dropped from a height 2meter.

Answer 4

P.e=k.e then,
Mgh=1\2mvsquare