1. What is Change in Momentum?

Change in momentum (Δp) is a fundamental concept in physics that represents the difference in an object's momentum between two points in time. It is calculated as the product of mass and change in velocity, and is directly related to the impulse applied to an object.

2. How Does the Calculator Work?

The calculator uses the change in momentum formula:

Where:

• \( \Delta p \) — Change in momentum (kg·m/s)
• \( m \) — Mass of the object (kg)
• \( \Delta v \) — Change in velocity (m/s)

Explanation: The change in momentum equals the mass multiplied by the change in velocity. This relationship is derived from Newton's second law of motion and is fundamental to understanding collisions and impacts.

3. Importance of Momentum Calculation

Details: Calculating change in momentum is crucial for analyzing collisions, understanding force interactions, designing safety systems, and solving problems in mechanics and engineering.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

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

Q2: How is change in momentum related to force?
A: According to Newton's second law, force equals the rate of change of momentum (F = Δp/Δt).

Q3: What does a negative change in momentum indicate?
A: A negative change in momentum indicates that the object is slowing down or changing direction opposite to its initial motion.

Q4: Is momentum conserved in collisions?
A: Yes, in isolated systems, the total momentum is conserved during collisions according to the law of conservation of momentum.

Q5: Can this formula be used for rotational motion?
A: For rotational motion, angular momentum is used instead of linear momentum, following different formulas involving moment of inertia and angular velocity.