# I need help with this question...(Physics)?

An 16-cm-long bicycle crank arm, with a pedal at one end, is attached to a 20-cm-diameter sprocket, the toothed disk around which the chain moves. A cyclist riding this bike increases her pedaling rate from 61 rpm to 94 rpm in 12 s .
A)What is the tangential acceleration of the pedal?
B)What length of chain...
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An 16-cm-long bicycle crank arm, with a pedal at one end, is attached to a 20-cm-diameter sprocket, the toothed disk around which the chain moves. A cyclist riding this bike increases her pedaling rate from 61 rpm to 94 rpm in 12 s .

A)What is the tangential acceleration of the pedal?

B)What length of chain passes over the top of the sprocket during this interval?

A)What is the tangential acceleration of the pedal?

B)What length of chain passes over the top of the sprocket during this interval?

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