Calculating Work

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Imagine pushing a heavy object across the ground. Work is being done if a force is applied and the object moves in the same direction.

In physics, work is using force to move an object a certain distance. Work is calculated by multiplying force by distance.

The SI unit of force is the Newton, and the SI unit of distance is the meter. This makes the unit of work a newton-meter, which is equal to 1 joule. The SI unit of work is the joule.

For example, if a force of 100 newtons is used to push an object 200 meters, the work done is 20,000 joules.

If the same force moves an object 234 meters, the work done is 23,400 joules.

Similarly, when work is known, this equation can be rearranged to calculate force or distance.

For example, 2,700 joules of work is done to move an object 30 meters.

Here, the force can be calculated by dividing the work by the distance, which is 2,700 joules divided by 30 meters, resulting in 90 newtons.

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