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What is work and give an example?

User Thumber Nirmal
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Final answer:

In physics, work is defined as the application of force to move an object over a distance in the direction of the applied force. Carrying a heavy load on level ground is an example of something we think of as work in everyday circumstances but is not work in the scientific sense. No energy is transferred or changed in form in this example without doing work.

Step-by-step explanation:

In physics, work is defined as the application of force, f, to move an object over a distance, d, in the direction of the applied force. An example of something we think of as work in everyday circumstances but is not work in the scientific sense is carrying a heavy load on level ground. In this case, although force is applied to lift the load and keep it from falling, no net force is applied to move the load forward at a constant velocity. Therefore, no work is done in the scientific sense.

For example, imagine you are carrying a heavy box across a room. Although you are exerting force on the box to prevent it from falling, the box is not moving in the direction of the applied force. The force you apply does not result in a change in the box's position, so no work is done in the scientific sense.

In this example, energy is not transferred or changed in form without doing work because no displacement occurs in the direction of the force. The force you exert does not result in the box moving, so there is no transfer or change in energy.

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