1. What is Impulse in Physics?

Definition: Impulse is the product of a force and the time during which it acts, equal to the change in momentum of the body.

Purpose: This calculator determines the magnitude of impulse when given mass and change in velocity.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

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

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

3. Importance of Impulse Calculation

Details: Understanding impulse is crucial in physics, engineering, and safety design (like airbags and crumple zones in cars).

4. Using the Calculator

Tips: Enter the mass in kilograms and change in velocity in meters per second. Mass must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What are the units of impulse?
A: Impulse is measured in Newton-seconds (Ns), which is equivalent to kg·m/s.

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

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

Q4: What's a practical example of impulse?
A: A baseball bat hitting a ball - the force applied over time changes the ball's momentum.

Q5: How does this differ from force?
A: Force is instantaneous, while impulse considers force over time (F = Δp/Δt).