A car of mass 500 kg moving with a speed 36 km/h in a straight road

A car of mass 500 kg moving with a speed 36 km/h in a straight road unidirectionally doubles its speed in 1 min. The power delivered by the engine is :

a) 1250 W
b) 1250 HP
c) 625 W
d) 625 HP

The correct answer is a) 1250 W.

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