Q:

# How do you calculate work?

A:

To calculate the amount of work applied to a given object, multiply the force acting upon the object by the object's displacement, and multiply that total by the cosine of the angle between the force and displacement. Use joules as the unit of measurement for work.

## Keep Learning

1. Calculate the force

The force acting upon an object is equal to the mass of the object in kilograms, multiplied by the object's velocity in meters per second, divided by the amount of time it was in motion in seconds. This can be expressed as F = m(v/t).

2. Calculate the object's displacement

Displacement is how far the force moved the object in meters. Measure the distance between the starting and stopping points of the object's movement.

3. Find the angle between the force and the displacement

To find this value, measure the angle between the direction of the force and the direction of the object's displacement. If the force and displacement move in the same direction, this value is zero.

4. Calculate the work done

Use the formula W = Fd cos ?, where W equals work, F equals force, d = displacement and ? equals the angle between F and d. Find the cosine of the angle, and multiply that by the values for force and displacement. Express work as a value in joules.

Sources:

## Related Questions

• A: To calculate the normal force on an object, draw a free body diagram, determine the surface's angle, factor in the other present forces, and solve for the ... Full Answer >
Filed Under:
• A: Water displacement can be explained by the law of buoyancy, which states when an object is immersed in a fluid that has a greater density than the object i... Full Answer >
Filed Under:
• A: Work is defined as a force acting upon an object to displace the object. In metric units, the standard unit for length or displacement is the meter, and th... Full Answer >
Filed Under:
• A: Boats and other waterborne vessels operate on the principle of buoyancy, or the property of fluid that causes it to exert force at all points on an object.... Full Answer >
Filed Under:
PEOPLE SEARCH FOR