1. What is Newton's Third Law?

Newton's Third Law states that for every action, there is an equal and opposite reaction. When one object exerts a force on another object, the second object exerts an equal force in the opposite direction on the first object.

2. How Does the Calculator Work?

The calculator uses Newton's Third Law equation:

Where:

• \( F_A \) — Force exerted by object A on object B (N)
• \( F_B \) — Force exerted by object B on object A (N)

Explanation: The negative sign indicates that the forces are equal in magnitude but opposite in direction.

3. Importance of Newton's Third Law

Details: Newton's Third Law is fundamental to understanding how forces work in pairs throughout the universe. It explains phenomena from rocket propulsion to everyday activities like walking.

4. Using the Calculator

Tips: Enter the force exerted by object A on object B in newtons (N). The calculator will automatically calculate the equal and opposite force exerted by object B on object A.

5. Frequently Asked Questions (FAQ)

Q1: Why are the forces equal and opposite?
A: This is a fundamental principle of physics - forces always occur in pairs, and the two forces in each pair are equal in magnitude and opposite in direction.

Q2: Do the forces cancel each other out?
A: No, because the forces act on different objects. They don't cancel each other out but rather create the interaction between the two objects.

Q3: What units should I use for force?
A: The calculator uses newtons (N), which is the SI unit of force. 1 newton is the force required to accelerate 1 kilogram of mass at 1 meter per second squared.

Q4: Can this law be applied to all types of forces?
A: Yes, Newton's Third Law applies to all types of forces including gravitational, electromagnetic, and contact forces.

Q5: Why is this law important in engineering?
A: This law is crucial for designing structures, vehicles, and machines as it helps engineers understand how forces are distributed and balanced in systems.