Science, asked by amy92, 1 year ago

a ball of mass m impinges upon an obstacle with velocoty v & is returned with the same velocity . the change in the momentum of the ball is ?

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Answered by youarebrainly

2 mv is the change in momentum if u want explanation then comment...

youarebrainly: ok

youarebrainly: look momentum is a vector quantity

youarebrainly: whose direction is same as that of velocity

youarebrainly: so change in momentum = final momentum - initaial momentum

youarebrainly: mv(final velocity ki direction ko positive le liya hai ) - m (-v)

youarebrainly: initial velocity ki direction opp. hain final velocity ki direction k so it is taken negetive

youarebrainly: and hence change in momentum is 2 mv

amy92: ohk

amy92: thnx

youarebrainly: welcome

Answered by anuj9296

a ball of mass m impinges upon an obstacle with velocoty v & is returned with the same velocity . the change in the momentum of the ball is $<b>$ 2mv . because change rate of momentum is =mv-mu
but u = v
so momentum= mv-mv

0mv

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a ball of mass m impinges upon an obstacle with velocoty v & is returned with the same velocity . the change in the momentum of the ball is ?​

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a ball of mass m impinges upon an obstacle with velocoty v & is returned with the same velocity . the change in the momentum of the ball is ?