Question

Momentum of an object changes from 100 kgm/s to 200 kgm/s in 2 seconds. What is the force applied on it?​

Answer 1

Explanation:

$\begin{gathered}\bigstar \: \: \: \sf Force = \frac{change \: of \: momentum}{time} \\\end{gathered}$

$\begin{gathered}\sf = \frac{200 -100 }{2} \\ \sf = \frac{ \cancel{100}}{ \cancel2} = 50\end{gathered}$

Note : Force = ma = m(v-u)/t = (mv – mu)/t = change of momentum /time = rate of change of momentum

Answer 2

Answer:

Change in momentum divided by time. So, ans is 200-100/2 = 50 N