1. What Is the Momentum Equation?

The momentum equation, \( p = m \times v \), describes the quantity of motion an object has. Momentum is a vector quantity, meaning it has both magnitude and direction, and is conserved in isolated systems.

2. How Does the Calculator Work?

The calculator uses the momentum equation:

Where:

• \( p \) — Momentum (kg·m/s)
• \( m \) — Mass (kg)
• \( v \) — Velocity (m/s)

Explanation: Momentum is directly proportional to both the mass and velocity of an object. Doubling either mass or velocity will double the momentum.

3. Importance of Momentum Calculation

Details: Momentum calculations are fundamental in physics for understanding collisions, conservation laws, and motion dynamics. It's crucial in engineering, automotive safety, and sports science.

4. Using the Calculator

Tips: Enter mass in kilograms and velocity in meters per second. Both values must be positive numbers to calculate valid momentum.

5. Frequently Asked Questions (FAQ)

Q1: What are the SI units for momentum?
A: The SI unit for momentum is kilogram-meter per second (kg·m/s).

Q2: Is momentum a scalar or vector quantity?
A: Momentum is a vector quantity, meaning it has both magnitude and direction.

Q3: How is momentum conserved in collisions?
A: In isolated systems, the total momentum before collision equals the total momentum after collision (law of conservation of momentum).

Q4: What's the difference between momentum and kinetic energy?
A: Momentum depends on mass and velocity (\(p = mv\)), while kinetic energy depends on mass and velocity squared (\(KE = \frac{1}{2}mv^2\)). Both are conserved in elastic collisions.

Q5: Can momentum be negative?
A: Yes, since momentum is a vector quantity, negative values indicate direction opposite to the defined positive direction.