Science
Impulse from force
Find impulse and momentum change from average force over a time interval.
Calculators / Science / Work by a constant force
Work by a constant force calculator
Calculate mechanical work from force, displacement and their included angle.
On this page
Work30J
Calculator controls
How to calculate
Calculate mechanical work from force, displacement and their included angle.
Work = f*d*cos(a*pi/180) J
Worked example
Force (N): 20; Displacement (m): 3; Force angle (degrees): 60.
Work: 30 J.
Assumptions and limits
The force magnitude and direction must be constant during the displacement. Work is negative above 90 degrees and zero at a right angle; a varying force requires integration.
Results are rounded for display; calculations use unrounded values. Read our calculation methodology.
Understanding the result
Calculate mechanical work from force, displacement and their included angle.
When this tool is useful
Work = f*d*cos(a*pi/180) J
Understanding your inputs
| Input | What to enter |
|---|---|
| Force (N) | Enter a number of at least 0 and no more than 1000000000000. |
| Displacement (m) | Enter a number of at least 0 and no more than 1000000000000. |
| Force angle (degrees) | Enter a number of at least 0 and no more than 180. |
Frequently asked questions
What assumptions does this calculation use?
The force magnitude and direction must be constant during the displacement. Work is negative above 90 degrees and zero at a right angle; a varying force requires integration.
How is the result calculated?
Work = f*d*cos(a*pi/180) J