X and Y are two identical masses at rest, suspended by an inextensible string passing over a smooth frictionless pulley. Particle X is given a push downwardswith a speed u. It collides with the floor and rebounds.a- both masses move before collisionb- X and Y move with the same speed u in opposite directions before colisionc- X and Y move upward with same speedd- X and Y move upwards with different speedsafter collision
Fawz Naim , 13 Years ago
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