Question # A particle is projected from point 'A' with velocity u ( sqrt{2} ) at an angle of ( 45^{circ} ) with the horizontal as shown in the figure. It strikes the inclined plane ( B C ) at right angle. The velocity of the particle just before the collision with the inclined is:

# A particle is projected from point 'A' with velocity u ( sqrt{2} ) at an angle of ( 45^{circ} ) with the horizontal as shown in the figure. It strikes the inclined plane ( B C ) at right angle. The velocity of the particle just before the collision with the inclined is:

(A) ( frac{sqrt{3} u}{2} )

(B) ( frac{u}{2} )

(C) ( frac{2 u}{sqrt{3}} )

(D) ( u )

Solution

The velocity of particle just before the collision with the inclined is ( frac{2 u}{sqrt{3}} )