A motor rotates a pulley of radius `25cm` at 20rpm. A rope around the pulley lifts a `50kg` block, What is the power output of the motor?

As shown in the given figure, two blocks are connected by a rope that passes over a set of pulleys. One block has a weight of 412 N, and the other has a weight of 908 N. The rope and the pulleys are massless and there is no friction. What is the acceleration of the lighter block ?

A motor generates an output power of 220 W at an angular velocity of 2100 rpm. Calculate the torque ( in Nm ) produced by the motor ? [ Take pi= ( 22)/( 7) ]

A motor generates an output power of 220 W at an angular velocity of 2100 rpm. Calculate the torque ( in Nm ) produced by the motor ? [ Take pi= ( 22)/( 7) ]

A motor pump lifts water from an average depth of 15 m at the rate of 5 kg per second. If the water is coming out of the pump with a velocity of 4 ms^(-1) , the power of the motor is (g = 10ms^(-1))

A 45 N brick is suspended by a light string from a 2.0 kg pulley. The brick is released from rest and falls to the floor below as the pulley rotates through 5.0 rad. The pulley may be considered a solid disk of radius 1.5 m. What is the angular speed of the pulley?

A motor is to be used to lift water from a depth of 10 m & discharging it on ground level at a speed 10m//s if 2 kg of water is lifted per second & the efficiency of motor is 40% The minimum power of the motor should be nearly :

Suppose the smaller pulley of the previous problem has its radius 5.0 cm and moment of inertia 0.10 kg-m^2. Find the tension in the part of the string joiningk the pulleys.

Suppose the smaller pulley of the previous problem has its radius 5.0 cm and moment of inertia 0.10 kg-m^2. Find the tension in the part of the string joiningk the pulleys.