A Discus Thrower Starting from rest, the thrower accelerates the discus to a final angular speed of +18.0 rad/s in a time of 0.280 s before releasing it. During the acceleration, the discus moves in a circular arc of radius 0.800 m. Find the magnitude of the total acceleration.

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Asked Apr 1, 2019
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  1. A Discus Thrower Starting from rest, the thrower accelerates the discus to a final angular speed of +18.0 rad/s in a time of 0.280 s before releasing it. During the acceleration, the discus moves in a circular arc of radius 0.800 m. Find the magnitude of the total acceleration.
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Expert Answer

Step 1

The expression for the total acceleration is given by equation (1). For the disc there will be centripetal and tangetial accelaration. Equations (2) and (3) gives the relations connecting accelaration and the radius of the circular arc.

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Step 2

In order to find the a­T , the angular acceleration of the disc can be found out from equation (4).

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Step 3

Equation (5) gives the relation connecting linear ...

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