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
Fawz Naim , 14 Years ago
Grade
