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 ??

  1. 68%
  2. 41%
  3. 200%
  4. 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=

  • 135
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