A boy of mass m boards s trolley of mass 2m moving with a constant speed u along a horizontal track. Neglecting friction, if the boy jumps vertically up with respect to trolley to catch hold of a branch of a three, the speed of the trolley after the body has jumped off is :

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u/2

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(3/4)u

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Solution

The correct option is C u
The vertical jump of the boy will not change the horizontal speed of the trolley. It will move with velocity u after the boy has jumped off the trolley.

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A boy of mass m boards s trolley of mass 2m moving with a constant speed u along a horizontal track. Neglecting friction, if the boy jumps vertically up with respect to trolley to catch hold of a branch of a three, the speed of the trolley after the body has jumped off is :

The correct option is C uThe vertical jump of the boy will not change the horizontal speed of the trolley. It will move with velocity u after the boy has jumped off the trolley.

The correct option is C u
The vertical jump of the boy will not change the horizontal speed of the trolley. It will move with velocity u after the boy has jumped off the trolley.