(Figure 1) shows the angular position of a potter'swheel.

A.) What is the angular displacement of the wheelbetween t =5 s and t = 15 s?

Express your answer in radians.

B.) What is the angular velocity of the wheelat 15 s?

Express your answer in radians per second.

C.) What is the maximum speed of a point on the outside of thewheel 15 cm from the axle?

Express your answer with the appropriate units.

0 (rad) 75 50- 25 5 10 15 -t(s) 20