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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 collision

b- X and Y move with the same speed u in opposite directions before colision

c- X and Y move upward with same speed

d- X and Y move upwards with different speedsafter collision

Fawz Naim , 14 Years ago
Grade
anser 1 Answers
Chetan Mandayam Nayakar

Last Activity: 14 Years ago

a) is obviously correct

b)is also correct

c)is wrong

d)is correct

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