Two boys,each of mass m,are standing at the back of a flatbed trolley of mass 4m.the trolley is at rest on a frictionless horizontal surface.The boys jump off simultaneously at one of end of the trolley whith a horizontal velocity of 2m's.the trolley moves in the opposte direction.calculate the final velocity of the trolley
1 answer
Use the law of conservation of momentum to solve this.
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