You are trying to raise a bicycle wheel of mass m and radius R up over a curb of height h. To do this, you apply a horizontal force F→, as shown in the figure. Feel free to assume that h < R, as shown in the picture. (a) What is the smallest magnitude of the force F→ that will succeed in raising the wheel onto the curb when the force is applied at the center of the wheel? (b) What if the force is applied at the top of the wheel? (c) In which case is less force required?
