1. What is Moment Of Force?

Moment of force (also known as torque) is a measure of the tendency of a force to rotate an object about an axis or pivot. It is calculated as the product of the force and the perpendicular distance from the axis to the line of action of the force.

2. How Does the Calculator Work?

The calculator uses the moment of force formula:

Where:

• \( M \) — Moment of force (N·m)
• \( F \) — Applied force (N)
• \( d \) — Perpendicular distance from axis (m)

Explanation: The moment is directly proportional to both the magnitude of the force and the distance from the pivot point.

3. Importance of Moment Calculation

Details: Calculating moment of force is essential in engineering, physics, and mechanics for analyzing rotational systems, designing structures, and understanding mechanical advantage in levers and other simple machines.

4. Using the Calculator

Tips: Enter force in newtons (N) and distance in meters (m). Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between moment and torque?
A: While often used interchangeably, moment generally refers to the rotational effect of any force, while torque specifically refers to the rotational effect in mechanical systems.

Q2: What are the units of moment of force?
A: The SI unit is newton-meter (N·m). Other units include pound-foot (lb·ft) and dyne-centimeter (dyn·cm).

Q3: Why is perpendicular distance important?
A: Only the component of distance perpendicular to the force direction contributes to the moment. The maximum moment occurs when the force is applied perpendicular to the lever arm.

Q4: How does moment relate to rotational equilibrium?
A: For an object to be in rotational equilibrium, the sum of all moments acting on it must equal zero.

Q5: Can moment be negative?
A: Yes, moment can be negative or positive depending on the direction of rotation (clockwise or counterclockwise).