1. What is Impulse in Physics?

Impulse is a concept in physics that represents the change in momentum of an object when a force is applied over a time interval. It is calculated as the product of mass and change in velocity (J = m × Δv).

2. How Does the Calculator Work?

The calculator uses the impulse formula:

Where:

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

Explanation: The impulse equals the product of the object's mass and its change in velocity, representing the change in momentum.

3. Importance of Impulse Calculation

Details: Calculating impulse is essential in understanding collisions, safety engineering, sports science, and analyzing forces in mechanical systems.

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 impulse?
A: Impulse is measured in kilogram meters per second (kg·m/s), which is equivalent to Newton seconds (N·s).

Q2: How is impulse related to force?
A: Impulse equals the integral of force with respect to time (J = ∫F dt), making it equivalent to the change in momentum.

Q3: Can impulse be negative?
A: Yes, impulse can be negative if the change in velocity is negative, indicating a decrease in momentum.

Q4: What's the difference between impulse and momentum?
A: Momentum is a property of a moving object (p = mv), while impulse is the change in momentum (Δp = J).

Q5: Where is impulse calculation used in real life?
A: Impulse calculations are used in car safety systems (airbags, crumple zones), sports equipment design, and analyzing collisions in physics.