The length of a bicycle pedal arm is 0.144 m, and a downward force of 141 N is applied to the pedal by the rider. What is the magnitude of the torque about the pedal arm's pivot when the arm is at an...

Extracted text: The length of a bicycle pedal arm is 0.144 m, and a downward force of 141 N is applied to the pedal by the rider. What is the magnitude of the torque about the pedal arm's pivot when the arm is at an angle of (a)47.8°, (b) 90°, and (c) 180° with the vertical? (a) Number i Units (b) Number Units (c) Number Units