1. What is the Torque Formula?

Torque (τ) is a measure of the rotational force applied to an object. It is calculated as the product of the force (F) applied perpendicular to the lever arm and the length of the lever arm (r).

2. How Does the Calculator Work?

The calculator uses the torque equation:

Where:

• \( \tau \) — Torque (N·m)
• \( F \) — 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 longer lever arm.

3. Importance of Torque Calculation

Details: Torque calculations are essential in mechanical engineering, automotive design, and physics. They help determine the rotational effect of a force and are crucial for designing engines, gears, and rotating machinery.

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-meter (N·m). Other units include pound-feet (lb·ft) and dyne-centimeter (dyn·cm).

Q2: How does angle affect torque?
A: Maximum torque occurs when force is perpendicular to the lever arm. The general formula is τ = F × r × sin(θ).

Q3: What's the difference between torque and moment?
A: In physics, they're often used interchangeably, though moment is more general while torque specifically refers to rotational force.

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

Q5: How is torque related to power?
A: Power (P) is the product of torque (τ) and angular velocity (ω): P = τ × ω.