An 18-cm-long bicycle crank arm, with a pedal at one end, is attached to a 20-cm-diameter sprocket,
Question:
An 18-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 60 rpm to 90 rpm in 10 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?
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Model Assume constant angular acceleration Visualize Solve a Since a 1 r find first With 90 rp...View the full answer
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Related Book For 
Physics for Scientists and Engineers A Strategic Approach with Modern Physics
ISBN: 978-0133942651
4th edition
Authors: Randall D. Knight
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