Newtons third law question- Action reaction pair

In summary, the car and garbage can exert equal and opposite forces on each other, as described by Newton's third law. The force exerted by the car on the garbage can, CB, is equal in magnitude to the force exerted by the garbage can on the car, BC. This is shown by drawing two free body diagrams, one for each object, and applying Newton's third law.
  • #1
Nelonski
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Homework Statement



A 2000kg car pushes a 1000kg garbage can at constant speed . The car exerts a force of magnitude CB on the garbage can, and the garbage can exerts a force BC on the car. Which force has greater magnitude, or are they equal? explain

Homework Equations


Fcb=-Fbc


The Attempt at a Solution



Esentially, I drew 2 FBD's and showed one for the car with a force on the right CB ... the second FBD of the garbage can has a force pointing to the left of BC... which is equal and opposite magnitude of CB

Basically i just explained Newtons third law

Is this correct?
 
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  • #2
That is right, and it is just Newton's third law, indeed.
 

1. What is Newton's third law?

Newton's third law states that for every action, there is an equal and opposite reaction. This means that when two objects interact, they exert equal and opposite forces on each other.

2. What is an action-reaction pair?

An action-reaction pair is a pair of forces that are equal in magnitude and opposite in direction. These forces act on two different objects and are a result of their interaction with each other.

3. Can you give an example of an action-reaction pair?

One example of an action-reaction pair is when a person jumps off a diving board. The person exerts a downward force on the diving board, and the diving board exerts an equal and opposite force on the person, propelling them upward.

4. Does Newton's third law apply to all interactions?

Yes, Newton's third law applies to all interactions between objects, whether they are in direct contact or not. This law is a fundamental principle of physics and is applicable in various situations.

5. How does Newton's third law relate to everyday life?

Newton's third law can be observed in many everyday situations, such as walking, driving a car, or throwing a ball. It explains why we feel a recoil when shooting a gun and why we feel a pushback when standing on a scale. It also plays a crucial role in understanding the motion of objects and the forces acting on them.

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