A potter is shaping a bowl on a potters wheel rotating at constant angular speed (Fig. 8-42).
Question:
(a) How large is her torque on the wheel, if the diameter of the bowl is 12 cm?
(b) How long would it take for the potters wheel to stop if the only torque acting on it is due to the potters hand? the initial angular velocity of the wheel is 1.6 rev/s, and the moment of inertia of the wheel and the bowl is 0.11 kg m2.
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a The torque exerted by the frictional force is 7 F sin 0 The frictional force is assumed to ...View the full answer
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