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Comprehension # 6 A 1 kg block is give...

Comprehension # 6
A `1 kg` block is given a velocity of `15 m//s` towards right over a very long rough plank of mass `2 kg` as shown in figure.

Momentum of both the blocks are equal at time `t = ……. s` :

A

1.75

B

1.875

C

2.5

D

1.25

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