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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

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

Grade:

1 Answers

Chetan Mandayam Nayakar
312 Points
11 years ago

a) is obviously correct

b)is also correct

c)is wrong

d)is correct

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