1. What is the Momentum Equation?

The momentum equation (p = m × v) calculates the momentum of an object from its mass and velocity. Momentum is a vector quantity that describes the quantity of motion an object possesses 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: The momentum of an object is directly proportional to both its mass and velocity. Doubling either mass or velocity will double the momentum.

3. Importance of Momentum Calculation

Details: Momentum calculations are fundamental in physics for analyzing collisions, understanding motion conservation principles, and solving problems in mechanics and engineering applications.

4. Using the Calculator

Tips: Enter mass in kilograms and velocity in meters per second. Both values must be valid (mass > 0).

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 a collision equals the total momentum after the collision, according to the law of conservation of momentum.

Q4: What's the difference between momentum and kinetic energy?
A: Momentum depends on mass and velocity (p = m×v), while kinetic energy depends on mass and velocity squared (KE = ½mv²). Both are conserved in elastic collisions.

Q5: Can momentum be negative?
A: Yes, since momentum is a vector quantity, it can be negative when the direction of motion is opposite to the chosen positive direction.