# Question

A bowling ball with a diameter of 21.6 cm is rolling down a level alley surface at without slipping. Assume the ball is uniform and made of plastic with a density of 800 kg/m3.

(a) What is the angular speed of the ball?

(b) Calculate the speed (relative to the alley surface) of a point on top of the ball directly above the contact point on the floor.

(c) What is the ball’s linear kinetic energy?

(d) If it now starts to roll up a incline, how far up the incline will it travel before it stops?

(a) What is the angular speed of the ball?

(b) Calculate the speed (relative to the alley surface) of a point on top of the ball directly above the contact point on the floor.

(c) What is the ball’s linear kinetic energy?

(d) If it now starts to roll up a incline, how far up the incline will it travel before it stops?

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