A discus thrower accelerated a discus from rest to a speed of 25 m/s by whirling it through 1.25 revs. Assume the discus moves on the arc of a circle 1 m in radius. a) Calculate the final angular speed of the discus. (2) b) Determine the magnitude of the angular acceleration of the discus, assuming it to be constant. (2) c) Calculate the time interval required for the discus to accelerate from rest to 25 m/

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Chapter7: Rotational Motion And The Law Of Gravity
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Problem 4WUE: A carnival carousel accelerates nonuniformly from rest, moving through an angle of 8.60 rad in 6.00...
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A discus thrower accelerated a discus from rest to a speed of 25 m/s by whirling it
through 1.25 revs. Assume the discus moves on the arc of a circle 1 m in radius.
a) Calculate the final angular speed of the discus. (2)
b) Determine the magnitude of the angular acceleration of the discus, assuming it to
be constant. (2)
c) Calculate the time interval required for the discus to accelerate from rest to 25 m/

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