a car of mass 1000 kg starting from rest and moving with uniform acceleration covers a distance of 20 m in 2 s. calculate the work done by the engine of car { ans = 2×100000}
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F= mg
= 1000× 10 = 10000 N
Work done = F× displacement
W = 10000× 20
W = 2× 100000 J
Or 200000J
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