A grinding wheel is a uniform cylinder with a radius of 8.40 cm and a mass of 0.350 kg . a) Calculate its moment of inertia about its center. Express your answer with the appropriate units. b)Calculate the applied torque needed to accelerate it from rest to 2000 rpm in 8.00 s if it is known to slow down from 1250 rpm to rest in 52.5 s .

An engineer trying to determine whether her crane will tip over when attempting to lift a 19K load. Her crane has a 15K chassis and 45K counterweight. Assume all 5ft other parts of the crane have negligible weight. Answer all questions relative to the rotation point. XXX XXX How much torque is caused by the load? unit How much torque is caused by the chassis? unit v How much torque is caused by the counterweight? unit BARNHART weight What is the normal force on the rear (right) outriggers? unit v What is the normal force on the front (left) outriggers? unit v finalize check answers cannot be determine (after completing ALL problems) 15: torque, challenge nos Scientific Online Calculator Chp

A turn table starts from rest and reaches 11 rad/s of angular velocity in 9.0 s. Find the total angle it turned during the time in rad. Hint: use rotational kinematics formula. Assume initial angle and initial angular velocity as zero.   Your Answer:

A constant horizontal force of 10 N is applied to a wheel of mass = 10 kg and radius of 0.3 m. The center of mass of the wheel has an acceleration of 0.48 m/s/s.   a) Determine the magnitude of the friction force acting on the wheel. b) Determine the magnitude of the rotational inertia if the linear acceleration were 0.48 m/s/s. You will have to recalculate the friction force.