Concept explainers
The torque needed to keep the wheel from turning.
Answer to Problem 17PP
Explanation of Solution
Given:
The force exerted by chain on the wheel in the clockwise direction,
The radius of a bicycle-chain wheel is
Formula used:
The torque can be obtained by:
Where, F is the applied force, r is the distance of the point of application of force from the axis of rotation, and
Calculation:
The applied force is at angle of
Now, the applied clockwise force will generate torque in clockwise direction. Thus, to stop the wheel from turning, the applied torque should be in anticlockwise direction of the magnitude,
Conclusion:
Thus, the applied torque should be
Chapter 8 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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