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A man of mass m is standing on a plank o...

A man of mass m is standing on a plank of equal mass m resting on a smooth horizontal surface. The man starts moving on the plank with speed u relative to the plank. The speed of the man relative to the ground is

A

`mL/ M`

B

ML/m

C

ml/m+M

D

ML/(m + M)

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AAKASH INSTITUTE ENGLISH-TEST 2-Exercise
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