A particle is projected from a point O in the horizontal surface OA with speed u and angle of projection 8 It just grazes the

Question

A particle is projected from a point O in the horizontal surface OA with speed u and angle of projection 8 It just grazes the plane BC which makes an angle a with the horizontal The time taken by the projectile to reach Pr the instant of projection is 2u sine g cosa O usine g cosa O usin e a 0 0050 P f B 0 C A

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