Question

A body of mass 'm' is moving with a velocity of 'u'. when a force is applied on it for time 't'. its velocity increase to 'v'. write expression for:
1. Initial and final Momentum
2. change of momentum
3. rate of change of momentum.
also write its SI unit for each ​

Answer 1

Answer:

initial momentum,p1=mu

final momentum,p2=mv

change in momentum =mv-mu

rate of change of momentum =mv-mu÷t

Answer 2

P=momentum

P=mv

$\red{initial \: momentum \: = mu \: {kg \: ms}^{ - 1} }$

$\purple{final \: momentum \: = mv \: {kg \: ms \: }^{ - 1} }$

change in momentum=mv-mu=final momentum-initial momentum

Rate in change of momentum=mv-mu/t