a ball of mass 4 kg strikes a rigid wall and rebounds elastically. its velocity is 2 m/s . the time in contact with wall is 0.050 s . calculate momentum.
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Momentum = 4 * 2 = 8 kg/s
Momentum after collision = -4 kg/s
Net change in momentum = 8-(-8) = 16 kg/s
Force = change in momentum / time = 16 / 0.050 = 32N
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Momentum after collision = -4 kg/s
Net change in momentum = 8-(-8) = 16 kg/s
Force = change in momentum / time = 16 / 0.050 = 32N
Kindly, ask me if you have any doubts. If you are satisfied with my answer, don't forget to mark my answer as the brainliest.
Regards [Brainly Expert]
[Thank You]
Prakashroy:
Mark my answer as the brainliest.
isnt the formula for change in momentum as final - initial ? then how come can initial momentum be negative ?
When initial becomes final then it will change to negative.
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