a boy of mass 60 kg running at 3 metre per second jump on a trolley of mass is 40 kg moving with a velocity of 4.5 metre per second in the same Direction What is the their common velocity
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3.6m/s
Before momentum = After momentum
60kg*3m/s + 40kg*4.5m/s = 100kg*v
180+180 = 100v
v = 360/100
v = 3.6m/s
Before momentum = After momentum
60kg*3m/s + 40kg*4.5m/s = 100kg*v
180+180 = 100v
v = 360/100
v = 3.6m/s
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