A Child Applies the Brakes on a Bicycle by Applying $60 ^ { \circ }$

Multiple Choice

A child applies the brakes on a bicycle by applying a downward force of 25 pounds on the pedal when the crank makes a $60 ^ { \circ }$ angle with the horizontal (see figure) . The crank is 6 inches in length. Find the torque at $P$ . Round your answer to two decimal places.

A) 12.50 ft-lb
B) 6.25 ft-lb
C) 75.00 ft-lb
D) 10.83 ft-lb
E) 21.65 ft-lb