1.

Particle A is released from a point P on a smooth inlined plane inclined at an angle alpha with the horizontal. At the same instant another particle B is projected with initial velocity U making an angle betawith the horizontal. Both the particles meet again on the niclined plane.

Answer»

Velocity along the INCLINED PLANE is same for both particles always
Acceleration along the inclined plane is same for both
`alpha + beta=90^(@)`
RELATIVE velocity between the particles first decreases and later increases

Answer :A::B::C::D


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