- A Pottery Wheel Is Mounted On A Shaft With Negligible Friction The Wheel Is Initially At Rest A Constant External Torq 1 (11.8 KiB) Viewed 36 times
A pottery wheel is mounted on a shaft with negligible friction. The wheel is initially at rest. A constant external torque of 78.0 Nm is applied to the wheel for 12.0 seconds, giving the wheel an angular speed of 515 rev/min in the clockwise direction when viewed from above. Calculate the magnitude of the angular acceleration of the wheel (in rad/s?). What is the direction of the acceleration? Calculate the value of the rotational inertia of the wheel. The external torque is removed, and a brake applied. It takes the wheel 225 seconds to come to rest. Calculate the magnitude of the torque exerted by friction from the brake. What is the direction of the torque?