A body of mass 10 kg jumps onto a 20 kg trolley travelling in same direction at 1.5 m per second what is there common velocity
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As the boy jumps on trolley =>Normal along y and friction along x act which are internal wrt man trolley system Conserve linear monemtum =
20×1.5= 30×v
v= 1m/sec
20×1.5= 30×v
v= 1m/sec
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