A bicycle tire is spinning counterclockwise at 3.00 rad/s. During a time period Δt = 1.40 s, the tire is stopped and spun in the opposite (clockwise) direction, also at 3.00 rad/s. Calculate the change in the tire's angular velocity Δω and the tire's average angular acceleration ?av. (Indicate the direction with the signs of your answers.) (a) the change in the tire's angular velocity Δω (in rad/s) rad/s (b) the tire's average angular acceleration ?av (in rad/s2) rad/s

A bicycle tire is spinning counterclockwise at 3.00 rad/s. During a time period Δt = 1.40 s, the tire is stopped and spun in the opposite (clockwise) direction, also at 3.00 rad/s. Calculate the change in the tire's angular velocity Δω and the tire's average angular acceleration ?av. (Indicate the direction with the signs of your answers.) (a) the change in the tire's angular velocity Δω (in rad/s) rad/s (b) the tire's average angular acceleration ?av (in rad/s2) rad/s

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A bicycle tire is spinning counterclockwise at 4.00 rad/s. During a time period Δt = 2.10 s, the tire is stopped and spun in the opposite (clockwise) direction, also at 4.00 rad/s. Calculate the change in the tire's angular velocity Δ? and the tire's average angular acceleration ?av. (Indicate the direction with the signs of your answers.) (a) the change in the tire's angular velocity Δ? (in rad/s) _______rad/s (b) the tire's average angular acceleration ?av (in rad/s2) _________rad/s2
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