The physics
Torque is rotational force — the ability of a push to twist something around an axis. It grows with the force applied, the distance from the pivot, and how perpendicular the push is.
Torque pushing a door with 20 N, 0.8 m from the hinge
Answer: torque = 16 N·m.
What we know
- Lever arm length: 0.8 m
- Force: 20 N
- Angle between force and arm: 90°
Step by step
- Given
- r = 0.8 m, F = 20 N, θ = 90°
- Formula
- τ = r × F × sin(θ)
- Substitute
- τ = 0.8 × 20 × sin(90)
- Result
- τ = 16 N·m
All results
| Torque | 16 N·m |
|---|
Open the torque calculator with these numbers → and change any of them.