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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 a smooth inclined pane (see figure). Simultaneously another particle Q is released on the smooth inclined plane from the same postion. P and Q colide on the inclined plane after `t=4` seconds. Find the speed projection in m/s.

A

Trajectory of particle `P` in the frame of `Q` is parabola during the flight of particle `P`

B

Speed of projection of `P` is `20m//s`

C

Relative velocity of Particle `P` in the frame of `Q` changes linearly with time during the flight of `P`.

D

Acceleration of particle `P` in the frame of `Q` is zero during the flight of `P`

Text Solution

Verified by Experts

The correct Answer is:
C
Acceleration of particle `P` and `Q` along the incline is same. Acceleration of particle `P` perpendicular to the incline plane is `10 cos 60^(@)=m//s^(2)`
So, `v_(P)-5(2)=0`
`:. v_(P)=10m//s`
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