Here's the question you clicked on:
ksaimouli
help torque
The wheel of a car has a radius of 0.330 m. The engine of the car applies a torque of 125 N·m to this wheel, which does not slip against the road surface. Since the wheel does not slip, the road must be applying a force of static friction to the wheel that produces a countertorque. Moreover, the car has a constant velocity, so this countertorque balances the applied torque. What is the magnitude of the static frictional force?
isn't torque force * length of the arm?
Your question is quite hard to understand. Do you have the actual wording of the problem? I think you are making assumptions that are not true. Motive frictional force is simply torque divided by radius.
yup i am looking for t/r how to get that
that is the same wording which is in my textbook
@Vincent-Lyon.Fr is motive is something to remember
?? I can't figure out if this is a statement or a question :))