You stick a paper onto a fridge with a magnet. There are two free body diagrams, one for the paper and one for the magnet. What are the forces acting on each object, which way do they point?

paper: force pushing in from magnet, force of ref pushing back, gravity, and friction point up. Friction=gravity

magnet= gravity down, friction up, horizonal force of attraction to referig.

For the paper:

1. The force of gravity acts downwards on the paper, pointing towards the center of the Earth. This force is represented as "F_gravity."

2. The force of tension acts upwards on the paper, as it is being pulled by the magnet. This force is represented as "F_tension."

For the magnet:

1. The force of gravity also acts downwards on the magnet, pointing towards the center of the Earth. This force is represented as "F_gravity."

2. The force of magnetic attraction acts towards the paper, pulling it towards the magnet. This force is represented as "F_magnetic attraction."

So, the forces acting on each object and their directions can be summarized as follows:

Paper:
- Force of gravity (F_gravity) pointing downwards
- Force of tension (F_tension) pointing upwards

Magnet:
- Force of gravity (F_gravity) pointing downwards
- Force of magnetic attraction (F_magnetic attraction) pointing towards the paper.

To determine the forces acting on the paper and the magnet, we need to consider the interaction between them.

For the paper:
- There is a gravitational force acting downward, due to the Earth's gravity.
- There is an upward force (normal force) exerted by the fridge surface on the paper that cancels out the gravitational force. This is because the paper remains at rest on the fridge and does not fall down.

For the magnet:
- There is a gravitational force acting downward on the magnet as well.
- There is a magnetic force exerted by the fridge's magnet on the magnet being stuck. This force is directed upwards and opposes the gravitational force.

It's important to note that the paper doesn't have a magnet, so it does not experience a magnetic force from the fridge.

To summarize, the forces acting on the paper are gravity pulling downward and the upward normal force from the fridge's surface. Meanwhile, the magnet experiences gravity pulling downward and an upward magnetic force from the fridge's magnet, which keeps it stuck.

Please note that the specific direction and strength of these forces may vary depending on the orientation and position of the paper and magnet. However, the explanation above provides a general understanding of the forces involved.

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