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Calculate the work required to be done to stop a bus of mass thousand kg moving at a velocity of 36 kilometre per hour
According to work energy theorem, the work done in stopping the bus will be equal to change in its kinetic energyConerting units, 36 km/hr = 10 m/sInitial kinetic energy = ½ x m x v2 = ½ x 1000 kg x (10 m/s)2 = 50000 JoulesFinal kinetic energy = 0 Work done = | Change in kinetic energy | = 50000 J
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