A bicycle pedal is pushed by a foot with a force of $a - \mathrm { N }$ as shown. The shaft of the pedal is $12 \mathrm {~cm}$ long. Find the magnitude of the torque about P correct to two decimal places. $$\text { Let } a = 70 , b = 70 ^ { \circ } , c = 10 ^ { \circ } \text {. }$$

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The Answer of A bicycle pedal is pushed by a foot with a force of $a - \mathrm { N }$ as shown. The shaft of the pedal is $12 \mathrm {~cm}$ long. Find the magnitude of the torque about P correct to two decimal places. $$\text { Let } a = 70 , b = 70 ^ { \circ } , c = 10 ^ { \circ } \text {. }$$

A Bicycle Pedal Is Pushed by a Foot with a Force