EngiRef / Mechanical Engineering Formula
Power (Rotational)
Power (Rotational): Mechanical power from torque and angular velocity. A Dynamics formula in mechanical engineering. Variables P, τ and ω, each with SI and…
Dynamics
Specification
- Name
- Power (Rotational)
- Discipline
- mechanical
- Category
- Dynamics
- LaTeX
- P = \tau \omega
- Description
- Mechanical power from torque and angular velocity
- Conditions
- Angular velocity must be in rad/s
- Can solve for
- P, τ, ω
- Tags
- power, torque, angular, rotation
Variables
| Symbol | Name | Unit | Si Unit | Imperial Unit |
|---|---|---|---|---|
| P | Power | W | W | hp |
| τ | Torque | N·m | N·m | ft·lbf |
| ω | Angular Velocity | rad/s | rad/s | rpm |
Common questions
- What is the Power (Rotational) formula?
- Mechanical power from torque and angular velocity. It sits under Dynamics, Mechanical engineering in the EngiRef reference.
- What do the symbols in the Power (Rotational) formula mean?
- In Power (Rotational), P is power in W; τ is torque in N·m; ω is angular velocity in rad/s.
- When does the Power (Rotational) formula apply?
- Power (Rotational) holds under this condition: Angular velocity must be in rad/s.