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A 1 kg block is a given a velocity of 15...

A 1 kg block is a given a velocity of 15 m//s towards right over a very long rough plank of mass 2kg placed on a smooth horizontal surface as shown in figure.

The correct graph showing linear momentum of `1 kg (i.e P_(1))` and and 2 kg `(i.eP_(2))` versus time is

A

B

C

D

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The correct Answer is:
D
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