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Home > Courses > 1P21_Razavi
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A discus thrower starts from rest and begins to rotate with a constant
angular acceleration of 2.2 rad/s2. During the acceleration the discus moves in
a circular arc of radius 0.85 m.
- How many revolutions does it take for the discus thrower's angular
speed to reach 6.3 rad/s?
- How long does this take?
- Assume that when the angular speed reaches 6.3 rad/s, the thrower releases the discus.
(i) What is the tangential acceleration of the discus at this point?
(ii) What is its total acceleration?
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