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Physics

Impulse Calculator

Impulse and momentum. Free online Impulse Calculator. Calculate impulse online — fast, accurate, mobile-friendly, no signup needed.

p = m·v.
Impulse (N·s)
50

Derivation

  1. ├── 01GivenF = 100, t = 0.5
  2. ├── 02Formulae.F × e.t
  3. ├── 03Substitutee.100 × e.0.5
  4. └── 04Compute Impulse (N·s)50
Did you know?

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§01What is

Understanding the Impulse Calculator

The Impulse Calculator computes Impulse (N·s) from 2 inputs: force (n), time (s). Impulse and momentum.

Physics is the toolkit for turning a real-world observation into a prediction. Whether it’s a falling object, a moving car, or a stressed beam, the equations here are the same ones every engineer relies on. The Impulse Calculator sits in that toolkit — it impulse and momentum. Enter your numbers above and the result updates instantly; every step of the math is shown in the Derivation panel so you can see exactly how the answer was reached.

§02The Formula

How it’s calculated

e.F × e.t

Where

F
Force (N)
t
Time (s)
§03Practical Example

Step-by-step walkthrough

Scenario

Apply the formula to a realistic set of inputs: Force (N) = 100, Time (s) = 0.5.

  1. 01Start by noting the input — Force (N): 100.
  2. 02Start by noting the input — Time (s): 0.5.
  3. 03Substitute these values into the formula: e.F × e.t
  4. 04Compute Impulse (N·s): the calculator returns 50.
  5. 05Cross-check the answer by opening the Derivation panel above — every line of math is shown so you can follow the computation end-to-end.
§04Variants

Common Impulse Problems

The formula gets rearranged depending on which variable you need. Here are the patterns you’ll run into in the real world — find the one that matches your problem and follow the worked steps.

01 · PATTERN

Force (N) halved

F = 50 (from 100)

Keep every other input at its default and halve the force (n). See how impulse (n·s) responds.

  1. 01New Force (N): 50
  2. 02Baseline Impulse (N·s): 50
  3. 03New Impulse (N·s): 25
  4. 04Impulse (N·s) decreases by 50% → use this sensitivity to plan for real-world variation.
02 · PATTERN

Force (N) doubled

F = 200 (from 100)

Keep every other input at its default and double the force (n). See how impulse (n·s) responds.

  1. 01New Force (N): 200
  2. 02Baseline Impulse (N·s): 50
  3. 03New Impulse (N·s): 100
  4. 04Impulse (N·s) increases by 100% → use this sensitivity to plan for real-world variation.
03 · PATTERN

Time (s) halved

t = 0.25 (from 0.5)

Keep every other input at its default and halve the time (s). See how impulse (n·s) responds.

  1. 01New Time (s): 0.25
  2. 02Baseline Impulse (N·s): 50
  3. 03New Impulse (N·s): 25
  4. 04Impulse (N·s) decreases by 50% → use this sensitivity to plan for real-world variation.
04 · PATTERN

Time (s) doubled

t = 1 (from 0.5)

Keep every other input at its default and double the time (s). See how impulse (n·s) responds.

  1. 01New Time (s): 1
  2. 02Baseline Impulse (N·s): 50
  3. 03New Impulse (N·s): 100
  4. 04Impulse (N·s) increases by 100% → use this sensitivity to plan for real-world variation.
§05FAQ

Frequently asked questions

Yes. The calculator implements the standard formula as documented and returns exact floating-point results. No approximations are used unless noted in the formula.
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