Question

an ball of mass 1 kg is dropped from a height of 40 m and comes to rest after hitting the ground if g = 10 m/s . calculate the momentum transferred to the ground by the body ​

Answer 1

momentum(p)=mass * velocity

m=10 h=80,g=10

we know v= root(2*g*h)

v=root(2*10*80)

v=root(1600)

v=40

substitute v in p equation

momentum (p) = 10*40

p=400kgm/sec