## ksaimouli 2 years ago help torque

1. ksaimouli

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?

2. phi

isn't torque force * length of the arm?

3. ksaimouli

yup

4. Vincent-Lyon.Fr

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.

5. ksaimouli

yup i am looking for t/r how to get that

6. ksaimouli

that is the same wording which is in my textbook

7. ksaimouli

@Vincent-Lyon.Fr is motive is something to remember

8. Vincent-Lyon.Fr

?? I can't figure out if this is a statement or a question :))

9. ksaimouli

question