$A$ ball of mass $m$ moving with velocity $v$, collide with the wall elastically as shown in the figure.After impact the change in angular momentum about $P$ is:
$A$ ball of mass $m$ moving with velocity $v$, collide with the wall elastically as shown in the figure.After impact the change in angular momentum about $P$ is:
- A
$2\, mvd$
- B
$2\, mvd\, cos\theta$
- C
$2\, mvd \,sin \theta$
- D
zero
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- [AIIMS 2004]
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