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A particle P is projected from a point o...


A particle P is projected from a point on the surface of smooth inclined plane (see figure). Simultaneously another particle Q is released on the smooth inclined plane from the same position. P and Q collide after`t=4`. The speed of projection of P is

A

5 m/s

B

10 m/s

C

15 m/s

D

20 m/s

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The correct Answer is:
B
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