a stone is dropped from a height h . it hits the ground with a certain momentum P . if the same stone is dropped from a height 100% more than the previous height , the momentum when it hits the ground will change by ??
- 68%
- 41%
- 200%
- 100%
Initially:
u=0
v=v
s=h
a=g
p=mv
III Equation of motion:
v 2 -u 2 =2as
v=
p=mv
Finally:
u=0
v=v'
a=g
s=h+100%h=h+h=2h
By the same equation:
v'=
p'=mv'=m=