Power from Force and Constant Velocity
Easypowerwork
A 500 N applied force acts in the direction of motion of an object moving at a constant 3 m/s. What power does that force deliver?
- A167 W
- B500 W
- C1,500 W
- D4,500 W
Show solutionHide solution
Answer: C. 1,500 W
Power delivered by a force is P = Fv cos θ. The force and velocity are aligned, so P = 500 × 3 = 1,500 W. Other forces may balance the applied force at constant speed.
Practice this deckUntimed, one problem at a time, with your progress saved.
Related problems
- Pump Shaft Power from Head and Efficiency · Fluids & Hydraulics
- Torque from Power and Shaft Speed · Stress & Strain
- Final Velocity with Constant Acceleration · Dynamics & Seismic