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A particle is projected from point 'A' with velocity u2 at an angle of 45º with the horizontal as shown in the figure. It strikes the inclined plane BC at right angle. The velocity of the particle just before the collision with the inclined is :

(A) √3u/2

(B) u/2

(C) 2u/√3

(D) u

1 Answer

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Best answer

Correct option  (C) 2u/√3

Explanation:

Let the particle strikes the inclined palne BC perpendicularly with a velocity v. Then

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