Asked by ayesha khan

a tennis ball of mass m strikes the massive wall with velocity v and traces the same path.calculate the change in momentum

Answers

Answered by Steve
momentum before: mv
momentum after: m(-v)

now just subtract to get the change.
Answered by shwetha
change in momentum =final-initial
initial =mv
final=-mv
change= -mv-(mv)=-2mv
Answered by Anonymous
Very nice
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