Work-Energy Theorem Calculator
Work done and kinetic energy change.
Enter your values
ⓘ Live results
Results
- Work done
- 1500 J
- Final kinetic energy
- 1500 J
- Final speed
- 12.25 m/s
- Initial kinetic energy
- 0 J
Quick answer
Work W = F x d x cos(theta), which equals the change in kinetic energy.
W = F d cos(theta) = deltaKE
How to use the Work-Energy Theorem Calculator
- 1Enter the applied force, distance and angle between force and travel direction.
- 2Enter mass and initial speed to see the resulting final speed.
- 3The work done equals the change in kinetic energy.
Worked example
Using the values the calculator loads with:
Inputs
- Force150 N
- Distance10 m
- Angle to motion0 degrees
- Mass20 kg
- Initial speed0 m/s
Results
- Work done1500 J
- Final kinetic energy1500 J
- Final speed12.25 m/s
- Initial kinetic energy0 J
Frequently asked questions
What if the angle is 90 degrees?
A force perpendicular to motion does zero work, like gravity on a satellite in circular orbit.
Does this include friction?
Enter friction as a separate negative-work force if needed; this tool assumes one net force.
About this calculator
- Built and reviewed by James Whitfield · How we build and test calculators
- Report an error
Results are estimates for general information. For medical, legal, structural or financial decisions, confirm with a qualified professional.