Two balls of masses 2kg and 1kg are dropped from the same height. What is the ratio of momentum when they are just to hit the ground? ( Take g=ms^-2)
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Answer:
V=
2gh
does not depend on mass
(i) ratio of velocity =1:1 because they are released from same height.
(ii) mg force acts on first, 2mg acts on second one
∴ ratio of force =1:2
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