# physics

The length of a bicycle pedal arm is 0.152 m, and a downward force of 146 N is applied to the pedal by the rider's foot. What is the magnitude of the torque about the pedal arm's pivot point when the arm makes the following angles with the vertical?
(a) 30°
(b) 90°
(c) 180°

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2. 👎 0
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