1. What is Torque?

Torque is a measure of the force that can cause an object to rotate about an axis. It is a vector quantity, meaning it has both magnitude and direction. Torque is calculated as the product of force and the perpendicular distance from the axis of rotation to the line of action of the force.

2. How Does the Calculator Work?

The calculator uses the torque equation:

Where:

• \( T \) — Torque (Nm)
• \( m \) — Mass (kg)
• \( g \) — Gravitational acceleration (m/s²)
• \( r \) — Radius or moment arm (m)

Explanation: This equation calculates the torque produced by a weight (mass under gravity) acting at a distance from a pivot point.

3. Importance of Torque Calculation

Details: Torque calculation is essential in mechanical engineering, physics, and various applications including automotive design, machinery operation, and structural analysis. It helps determine the rotational force in systems like engines, bolts, and levers.

4. Using the Calculator

Tips: Enter mass in kilograms, gravitational acceleration in m/s² (default is Earth's gravity 9.81 m/s²), and radius in meters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the standard value for gravitational acceleration?
A: On Earth, the standard value is approximately 9.81 m/s², but this varies slightly depending on location and altitude.

Q2: Can this calculator be used for different planets?
A: Yes, simply adjust the gravity value to match the gravitational acceleration of the specific celestial body.

Q3: How does radius affect torque?
A: Torque is directly proportional to radius. Doubling the radius will double the torque for the same mass and gravity.

Q4: What are common units for torque?
A: The SI unit is Newton-meter (Nm). Other units include pound-foot (lb·ft) and kilogram-meter (kg·m).

Q5: Is torque the same as moment?
A: In physics and engineering, torque and moment are often used interchangeably, though technically moment is a more general term that includes torque as a specific case.