A) mnu
B) 2 mnu
C) 4 mnu
D) \[\frac{1}{2}\,mnu\]
Correct Answer: B
Solution :
\[\vec{F}=\frac{d\vec{p}}{dt}=\] Rate of change of momentum As balls collide elastically hence, rate of change of momentum of ball = \[n[mu-(mu)]\]= \[2mnu\] i.e. \[F=2mnu\]You need to login to perform this action.
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