An electrical motor is rotating at 900rpm and when it is swirched off it is brought to rest with uniform retardation in 400 revolutions . Find the time taken to bring the motor rest and the angular retardation .
An electrical motor is rotating at 900rpm and when it is swirched off it is brought to rest with uniform retardation in 400 revolutions . Find the time taken to bring the motor rest and the angular retardation .