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Answer to Question #39586 in Mechanics | Relativity for vinay kumar
Question #39586
a) A ball has an angular velocity of 5.0 rad/s counterclockwise. Some time later, after
rotating through a total angle of 4.5 radians, the ball has an angular velocity of
1.5 rad/s clockwise. Determine the angular acceleration, the average angular velocity
and how much time it takes for the ball to attain this velocity.
b) When a high diver wants to execute a flip in midair, she draws her legs up against her
chest. Why does this make her rotate faster? What should she do when she wants to
come out of her flip?
rotating through a total angle of 4.5 radians, the ball has an angular velocity of
1.5 rad/s clockwise. Determine the angular acceleration, the average angular velocity
and how much time it takes for the ball to attain this velocity.
b) When a high diver wants to execute a flip in midair, she draws her legs up against her
chest. Why does this make her rotate faster? What should she do when she wants to
come out of her flip?
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