Question

For a gear ratio of 4:1, the output torque is 300 ft-lb. What would be the input torque?

A. 1200 ft-lb
B. 600 ft-lb
C. 150 ft-lb
D. 75 ft-lb

Answer 1

The input torque would be 1200 ft-lb.

Step-by-step explanation:

To find the input torque, we can use the formula:

Output Torque/Output Speed = Input Torque/Input Speed

Given that the output torque is 300 ft-lb and the gear ratio is 4:1, we can rewrite the formula as:

300 ft-lb/1 = Input Torque/4

Solving for Input Torque, we get:

Input Torque = 300 ft-lb * 4 = 1200 ft-lb