answer the question
I WILL MARK YOU BRAINLIEST IF ANSWER IS CORRECT
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according to law of conservation of momentum
initial momentum = final momentum
in the question we are asked to find the common velocity
that means both the boy and the trolley have the same velocity.
initial momentum=60×3+140×1.5
=390kgm/s
final momentum=60v+140v
=(60+140)v=200v
on equating
200v=390
v=1.95
pls mark it as the brainliest
devesh2719:
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