A body of mass $M$ hits normally a rigid wall with velocity $y$ and bounces back with the same velocity. The…
A body of mass $M$ hits normally a rigid wall with velocity $y$ and bounces back with the same velocity. The impulse experienced by the body is
- $1.5 \mathrm{Mv}$
- $2 \mathrm{Mv}$
- zero
- $M v$
Solution
Impulse
$\begin{aligned}
|J| & =|\Delta p| \\
& =M v-(-Mv) \\
& =2 Mv
\end{aligned}$
Asked in: NEET 2011 (Screening)
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