Discus throwers often warm up by throwing the discus with
Chapter 8, Problem 8.68(choose chapter or problem)
Discus throwers often warm up by throwing the discus with a twisting motion of their bodies. Figure 8.13a illustrates a top view of such a warm-up throw. Starting from rest, the thrower accelerates the discus to a final angular velocity of 15.0 rad/s in a time of 0.270 s before releasing it. During the acceleration, the discus moves on a circular arc of radius 0.810 m. Find the magnitude a of the total acceleration of the discus just before the discus is released.
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