A) Momentum change is mvr
B) Change in K.E. is 1/2 mv2
C) Change in K.E. is mv2
D) Change in K.E. is zero
Correct Answer: D
Solution :
As momentum is vector quantity \ change in momentum \[\Delta P\]= \[2mv\sin (\theta /2)\] =\[2mv\sin (90)=2mv\] But kinetic energy remains always constant so change in kinetic energy is zero.You need to login to perform this action.
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