Question

A homogeneous disk with a radius R = 0.2m and a mass m = 5kg rotates about an axis passing through its center. The time dependence of the angular velocity of the disk rotation is expressed by the equation ω = A+Bt, where B = 8rad/s 2 . Assume there is no friction. 1) Calculate the angular acceleration of the disk. 2) Calculate the tangential force applied to the disk rim. 3) Draw a drawing showing all the vector and scalar quantities used in the problem.

Answer 1