# science

posted by
**Jill**
.

While riding a bike, a rider exerts a force of 540 N on the pedal, which when attatched to a sprocket creates a radius of rotation of 0.18 m. How much torque does the rider exert on the sprocket?

I think I have to use the formula

torque=rFsin(x)

But I'm not sure if that's right or how to solve it.