A solid ball, of radius 45 mm, rolls down an inclined plane of length 2.5 m. The sphere takes a time of 6.0s to roll down the plane. Assume that the ball does not slip. 1 = 2/5mr^2? a. Calculate the translational velocity of the sphere as it reaches the end of the plane.

b. Calculate the angular velocity of the spere as it reaches the end of the plane.

c. Determine the angle of inclination of the plane.

d. Comment on whether the assumption that the ball does not slip was appropriate in this instance.