1. What is Impulse?

Impulse is the product of force and the time interval over which it acts. It represents the change in momentum of an object and is measured in newton-seconds (N·s).

2. How Does the Calculator Work?

The calculator uses the impulse formula:

Where:

• \( J \) — Impulse (N·s)
• \( F \) — Force (N)
• \( \Delta t \) — Time interval (s)

Explanation: The impulse equals the force applied multiplied by the duration of time over which the force is applied.

3. Importance of Impulse Calculation

Details: Impulse calculation is crucial in physics and engineering for understanding momentum changes, collision analysis, and designing safety systems like airbags and crumple zones in vehicles.

4. Using the Calculator

Tips: Enter force in newtons (N) and time in seconds (s). All values must be valid positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is the relationship between impulse and momentum?
A: Impulse equals the change in momentum (J = Δp). This is known as the impulse-momentum theorem.

Q2: What are the units of impulse?
A: Impulse is measured in newton-seconds (N·s) which is equivalent to kg·m/s.

Q3: How does impulse relate to force?
A: For a given change in momentum, a longer time interval requires less force, and a shorter time interval requires more force.

Q4: What are some real-world applications of impulse?
A: Airbags, seatbelts, athletic padding, and catching techniques all use impulse principles to reduce impact forces.

Q5: Can impulse be negative?
A: Yes, impulse can be negative if the force is applied in the opposite direction to the motion, resulting in a decrease in momentum.