# Action-Reaction forces and angles

• B
• Sundown444
In summary, objects with action-reaction forces have their forces exerted in opposite directions and at an angle of 180 degrees between the two force vectors. The angle of the objects themselves is not relevant in determining the direction of the forces.
Sundown444
Now, I am sure we all know that objects and their action-reaction forces happen in terms of exerting forces at opposite directions but with the same magnitude. That said, I wish to ask: Do objects with action-reaction forces have their forces exerted in opposite angles as well as opposite directions?

What do you mean by "opposite angles"? I can't see what you could mean by this that isn't covered by "opposite direction".

Dale
Or I guess I am asking, more precisely, do objects with action-reaction forces have act be exerted at different angles from each other, or the same?

I still don't understand. Can you give an example of two things that are in opposite directions but not opposite angles, however you are defining this?

Say a ball is hit by a ping pong paddle. The paddle hits the ball at 45 degrees. But the top of the ball is hit, say at 90 degrees. Would the angles between these two objects not be opposite in angles, even though the parts pushing each other are the same direction?

Sundown444 said:
Say a ball is hit by a ping pong paddle. The paddle hits the ball at 45 degrees. But the top of the ball is hit, say at 90 degrees. Would the angles between these two objects not be opposite in angles, even though the parts pushing each other are the same direction?
The direction that the ball hits the paddle or the paddle hits the ball is not relevant. What is relevant is the direction of the force. It is the direction of the two forces that are equal and opposite. The angle of the ball doesn't enter into it at all.

Ibix
So the angle does not matter in action reaction forces, you say?

Sundown444 said:
So the angle does not matter in action reaction forces, you say?
The angle of the force matters. The angle of the ball or the paddle or whatever doesn't matter except insofar as it affects the angle of the forces

So, are the angles of the force opposite, or same, or different to each other?

Sundown444 said:
So, are the angles of the force opposite, or same, or different to each other?
The angle between the 3rd law forces is 180°.

Sundown444 and Lnewqban
A.T. said:
The angle between the 3rd law forces is 180°.

Okay, just wanted to make sure. Thanks!

Sundown444 said:
... Do objects with action-reaction forces have their forces exerted in opposite angles as well as opposite directions?
The angle formed between both force vectors must be always π, otherwise we will have a third resulting vector force.

Sundown444

## 1. What are action and reaction forces?

Action and reaction forces are a pair of forces that occur when two objects interact with each other. The action force is the force exerted by one object on another, while the reaction force is the force exerted by the second object on the first object in response.

## 2. How are action and reaction forces related?

Action and reaction forces are equal in magnitude and opposite in direction. This means that the force exerted by one object on another is always equal in strength to the force exerted back on the first object by the second object.

## 3. What is the principle of action and reaction forces?

The principle of action and reaction forces, also known as Newton's Third Law of Motion, states that for every action, there is an equal and opposite reaction. This means that forces always occur in pairs and that the two forces are acting on different objects.

## 4. How do action and reaction forces affect motion?

Action and reaction forces do not cancel each other out and do not affect the motion of the same object. Instead, these forces act on different objects, causing them to move in opposite directions. This is why an object at rest will remain at rest unless acted upon by an external force.

## 5. What is the role of angles in action-reaction forces?

The angle at which action and reaction forces are applied can affect the resulting motion. When the forces are applied at a right angle, the resulting motion will be perpendicular to the forces. However, when the forces are applied at an angle, the resulting motion will be a combination of both forces, known as a vector sum.

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