1. What is Torque?

Torque is a measure of the rotational force applied to an object. It's calculated as the product of the force applied perpendicular to the lever arm and the length of the lever arm.

2. How Does the Calculator Work?

The calculator uses the torque equation:

Where:

• \( \tau \) — Torque (Nm)
• \( F \) — Force applied perpendicular to the lever arm (N)
• \( r \) — Length of the lever arm (m)

Explanation: The equation shows that torque increases with either greater force or a longer lever arm.

3. Importance of Torque Calculation

Details: Torque calculations are essential in mechanical engineering, automotive design, and any application involving rotational motion or tightening of fasteners.

4. Using the Calculator

Tips: Enter force in newtons (N) and radius in meters (m). Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are common units for torque?
A: The SI unit is newton-meters (Nm). Other units include pound-feet (lb-ft) and kilogram-force meters (kgf·m).

Q2: How does angle affect torque?
A: Only the perpendicular component of force creates torque. The full equation is τ = r × F × sin(θ).

Q3: What's the difference between torque and power?
A: Torque is a rotational force, while power is the rate at which work is done (torque × angular velocity).

Q4: Why is torque important in engines?
A: Engine torque determines the rotational force available to do work, affecting acceleration and towing capacity.

Q5: How is torque measured in practice?
A: Torque wrenches measure torque directly, while dynamometers measure engine torque output.