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a car of mass 1000 kg is starting from the rest and mo ing with a uniform acceleration covers a distance of 20 m in 25s. calculate the work done by the engine of the car during this time |
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Answer» W=F×s W=ma×(UT+ 1
at 2 ) =(1000×2)×(0×5+ 2 1
×2×5 2 ) =2000×25 =100kJ |
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