1. What is Impulse in Physics?

Definition: Impulse is the product of a force (F) and the time interval (Δt) during which it acts.

Purpose: It measures the change in momentum of an object when a force is applied over a time interval.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( J \) — Impulse (Newton-seconds, Ns)
• \( F \) — Force (Newtons, N)
• \( \Delta t \) — Time interval (seconds, s)

Explanation: The force applied is multiplied by the duration of time over which it acts to calculate the impulse.

3. Importance of Impulse Calculation

Details: Impulse is crucial in understanding collisions, rocket propulsion, and any scenario where forces act over time intervals.

4. Using the Calculator

Tips: Enter the force in Newtons and the time interval in seconds. 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 (Ns), which is equivalent to kg·m/s.

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

Q3: What's a typical impulse value in everyday situations?
A: A tennis racket hitting a ball might deliver about 2-5 Ns of impulse.

Q4: Can impulse be negative?
A: Yes, if the force direction is opposite to the chosen positive direction.

Q5: Why is time important in impulse?
A: Longer application time means less force needed to achieve the same impulse (and momentum change).