A grindstone of mass 30 kilogram and radius 20 centimeter

Question

A grindstone of mass, 30 kilogram and radius 20 centimeter, starts rotating from rest and has a constant angular acceleration of 0.40 rad/s².

a. Determine the angular displacement at t = 15 sec?

b. Determine the wheels angular velocity at t = 15 sec?

c. Determine the tangential velocity of a spot on the edge of the wheel at t = 15 sec?

d. Determine the radial acceleration of a spot on the edge of the wheel at t = 15 sec?

e. Determine the tangential acceleration of a spot on the edge of the wheel at t = 15 sec?