List of top Physics Questions on Power asked in KEAM

A car moves at a speed of 72 kmph, under a force of 600 N. The power output of the car is

If a body at rest undergoes displacement under the action of force with constant acceleration, then the power delivered by the force at any time t is proportional to

A car moves at a speed of $20~ms^{-1}$ under a force of 500 N. The power output of the car is ________.

A lift with a load of \(1000kg\) is moving up against the frictional force \(2000N\). If the power delivered to it by the operating motor is 36000 W, then the speed of the lift is \((g = 10 m s^{-2})\)

A car of mass 1500 kg is lifted up a distance of 30 m by crane A in 0.5 minutes. The second crane B does the same job in 1 minute. The ratio of their powers is