How Much Force to Overcome a Step with a Wheel?

[Eagle Eyes]

Homework Statement

A wheel of radius R and mass M is dragged over a step of height h by force F applied horizontally at its center. What is the maximum value of F required so that the wheel climbs over the step? (Hint: wheel climb is equivalent to a rotation around the point of contact with the step.)

Homework Equations

Not available.

The Attempt at a Solution

I have no idea how to start this. But i would use potential energy perhaps?

 

[LowlyPion]

Homework Statement

A wheel of radius R and mass M is dragged over a step of height h by force F applied horizontally at its center. What is the maximum value of F required so that the wheel climbs over the step? (Hint: wheel climb is equivalent to a rotation around the point of contact with the step.)

Homework Equations

Not available.

The Attempt at a Solution

I have no idea how to start this. But i would use potential energy perhaps?

You're going to want to consider the Σ Torques > 0 needed to pivot over the edge of the step as the hint suggests.