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A 66-cm-diameter wheel accelerates uniformly about its center from 120 rpm to 280 rpmrpm rpm in...

A 66-cm-diameter wheel accelerates uniformly about its center from 120 rpm to 280 rpmrpm rpm in 4.6 s .

A.Determine its angular acceleration.

Express your answer using two significant figures.

B.

Determine the radial component of the linear acceleration of a point on the edge of the wheel 2.0 s after it has started accelerating.

Express your answer using two significant figures.

c.

Determine the tangential component of the linear acceleration of a point on the edge of the wheel 2.0 s after it has started accelerating.

Express your answer using two significant figures.

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