Question

8. A torque wrench reads 25 lb ft.
a. If its length is 1.0 ft, what force is being applied to the wrench?
b. What is the force if the length is doubled?

Answer 1

well, torque = radius * force

T = rF

if the radius is doubled, the new torque is

T' = (2r)F = 2rF = 2T

Answer 2

Torque