Solve the following problem given below:
Problem: A grinding wheel in the shape of a solid disk is 0.280m in diameter and has a mass of 2.50 kg. The wheel is rotating at 2500rpm about an axis through its center
Part I: What is its kinetic energy?
Part II: How far would it have to drop in free fall to acquire the same amount of kinetic energy?
Please show work I think I have the solution just not positive.