Question

A body of mass $60kg$ has the momentum $3000kgm{s}^{-1}$. Calculate the speed of the body.

Answer 1

Given;
Mass of the truck, $m=60kg$
Momentum, $p=3000{kgms}^{-1}$
Momentum of a body of mass ${}^{\prime }{m}^{\prime }$ moving with a velocity ${}^{\prime }{v}^{\prime }$ is expressed as
$p=mv$
$\therefore 3000=60\times v$
$\Rightarrow v=\frac{3000}{60}=50{ms}^{-1}$