Questions
A car of mass 800 kg is being driven with a constant acceleration 1.5 m/s2 on a straight road against a constant resistive force 72 N. When the speed of the car is 72 km/hr, the rate at which engine is doing work will be :
detailed solution
Correct option is A
Rate of doing work = Power=Fv=[72+800(1.5)]72×518=25440WTalk to our academic expert!
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