College Physics
College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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please answer only a) b) and c) .. question d) and e) will be asked on the next post

A discus thrower
accelerates a disc with mass of 2 kg from rest within
four full turns (revolutions) and releases it at a speed of 22.5 m/s. Assuming a
uniform rate of increase in angular velocity and the circular path has a radius of
0.81 m, calculate:
(a)
the angular displacement,
(b)
the angular acceleration,
(c)
the (linear) tangential acceleration, and
(d)
the net force being exerted on the discus by the athlete just before release.
(e)
the angle of this force with respect to the radius of the circular motion.
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Transcribed Image Text:A discus thrower accelerates a disc with mass of 2 kg from rest within four full turns (revolutions) and releases it at a speed of 22.5 m/s. Assuming a uniform rate of increase in angular velocity and the circular path has a radius of 0.81 m, calculate: (a) the angular displacement, (b) the angular acceleration, (c) the (linear) tangential acceleration, and (d) the net force being exerted on the discus by the athlete just before release. (e) the angle of this force with respect to the radius of the circular motion.
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