Chapter 2.1, Problem 3aT

A magnet is supported by another magnet as shown at right.
1. Draw a free-body diagram for magnet 2. The label for each of the forces on your diagram should indicate:

• the type of force (e.g., gravitational, normal),
• the object on which the force is exerted, and
• the object exerting the force.

2. Suppose that the magnets were replaced by stronger magnets of the same mass.

If this changes the free-body diagram for magnet 2, sketch the new free-body diagram and describe how the diagram changes. (Label the forces you did in part I above.) If the free-body diagram for magnet 2 does not change, explain why it does not.

3. Can a magnet exert a non-contact force on another object?

Can a magnet exert a contact force on another object?

Describe how you can use a magnet to exert both a contact force and a non-contact force on another magnet.

4. To ensure that you have accounted for all the forces acting on magnet 2 in parts 1 and 2:

List all the non-contact forces acting on magnet 2.

List all the contact forces acting on magnet 2. (Hint: Which objects are in contact with magnet 2?)