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Question: q4 a car of mass 1125 kg descends a hill...

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Q.4 A car of mass 1125 Kg descends a hill of 1in 5 ( sine).Calcula the average braking force required to bring the car to rest from 72km/h in 50m. The resistance to the motion is 25ON te, using work-energy method, frictional he Answer : 6.46 kN
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