Read both the statements carefully and choose the correct alternative. Assertion (A): The instantane

A quarter horse power motor runs at a speed of 600 r.p.m. Assuming 50% efficiency, the work done by

A particle of mass m is driven by a machine that delivers a constant power k watt. If the particle s

A car is moving at a speed of 40 km/hr. If the car engine generates constant 7 kilowatt power, then

A car of mass m starts from rest and accelerates so that instantaneous power delivered to the car ha

An engine pumps water through a hose pipe. Water passes through the pipe and leaves it with a veloci