Work done by 2 objects move together

In summary, when object 1 pushes on object 2 and does 15.0 J of work, object 2 also does work on object 1 as a resistive force. However, the exact amount of work done by object 2 is not specified and may vary depending on the situation. It is generally true that the work done by one object on another is equal and opposite, but this may not hold true in all situations.
  • #1
MechaMZ
128
0

Homework Statement


Object 1 pushes on object 2 as the objects move together, like a bulldozer pushing a stone. Assume object 1 does 15.0 J of work on object 2. Does object 2 do work on object 1?

The Attempt at a Solution


My answer is yes, the object 2 does work on object 1 as a resistive force. However, how do I know the exactly work that done by the object 2?

2 objects are moving together without mention under a constant velocity or acceleration. I've no clue on this.
 
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  • #2
Work done on 2 by 1 = - work done by 1 on 2.
 
  • #3
in all kind of situation?
 
  • #4
MechaMZ said:
in all kind of situation?

I believe it is so in most cases.
 

1. What is work done by 2 objects moving together?

The work done by 2 objects moving together refers to the amount of energy transferred from one object to another as they move in the same direction at the same time. This can be calculated by multiplying the force applied on the objects by the distance they move.

2. How is work done by 2 objects moving together different from work done by a single object?

The main difference is that in the case of 2 objects moving together, both objects are exerting a force and are moving in the same direction, while in the case of a single object, the force and direction of motion are the same. This results in a greater amount of work being done by 2 objects moving together compared to a single object.

3. Can the work done by 2 objects moving together be negative?

Yes, the work done by 2 objects moving together can be negative if the force applied on one object is in the opposite direction of its motion. This results in the object losing energy and the other object gaining energy, leading to a negative value for work done.

4. How does the mass of the objects affect the work done by 2 objects moving together?

The mass of the objects does not directly affect the work done by 2 objects moving together. However, the mass does play a role in determining the amount of force required for the objects to move together, which in turn affects the work done.

5. What are some real-life examples of work done by 2 objects moving together?

Some examples of work done by 2 objects moving together include a person pushing a heavy object with a friend, a car being towed by another car, and a person carrying another person on their back while walking. In all these cases, both objects are moving in the same direction and exerting force on each other, resulting in work being done.

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