1. What is Impulse?

Definition: Impulse is the product of a force and the time over which it acts, equivalent to the change in momentum of an object.

Purpose: This calculator helps determine the impulse when you know the mass of an object and its change in velocity.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( J \) — Impulse (Newton-seconds, N s)
• \( m \) — Mass of the object (kilograms, kg)
• \( \Delta v \) — Change in velocity (meters per second, m/s)

Explanation: The mass is multiplied by the change in velocity to calculate the impulse.

3. Importance of Impulse Calculation

Details: Impulse calculations are crucial in physics and engineering for understanding collisions, rocket propulsion, and safety systems.

4. Using the Calculator

Tips: Enter the mass in kilograms and change in velocity in meters per second. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What are the units of impulse?
A: Impulse is measured in Newton-seconds (N s) or kilogram-meters per second (kg·m/s).

Q2: How is impulse related to momentum?
A: Impulse equals the change in momentum of an object (J = Δp).

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

Q4: What's a practical example of impulse?
A: Airbags in cars increase the time of impact, reducing force while maintaining the same impulse.

Q5: How does mass affect impulse?
A: Greater mass results in greater impulse for the same change in velocity.