A child applies the brakes on a bicycle by applying a downward force of 20 pounds on the pedal when the crank makes a 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) 15.32 ft-lb
B) 7.66 ft-lb
C) 91.93 ft-lb
D) 6.43 ft-lb
E) 12.86 ft-lb

Question

A child applies the brakes on a bicycle by applying a downward force of 20 pounds on the pedal when the crank makes a  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) 15.32 ft-lb 
B) 7.66 ft-lb 
C) 91.93 ft-lb 
D) 6.43 ft-lb 
E) 12.86 ft-lb

Quizplus · Accepted Answer

The Answer of A child applies the brakes on a bicycle by applying a downward force of 20 pounds on the pedal when the crank makes a  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) 15.32 ft-lb 
B) 7.66 ft-lb 
C) 91.93 ft-lb 
D) 6.43 ft-lb 
E) 12.86 ft-lb

A Child Applies the Brakes on a Bicycle by Applying