Impulse and Momentum Calculator

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Calculates impulse (force times time) and relates it to the change in momentum. It helps understand the relationship between force, time, mass, and velocity in physics.

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How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Force (Newtons), Time (seconds), Mass (kilograms), and Initial Velocity (m/s) in the units shown.

Step 2

Read Impulse (Ns), Change in Momentum (kg m/s), and Final Velocity (m/s) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Example 1

Force (Newtons): 20 N; Time (seconds): 3 s; Mass (kilograms): 2 kg; Initial Velocity (m/s): 0 m/s

Impulse (Ns): 60 Ns; Change in Momentum (kg m/s): 60 kg m/s; Final Velocity (m/s): 30 m/s

Example 2

Force (Newtons): 5 N; Time (seconds): 4 s; Mass (kilograms): 10 kg; Initial Velocity (m/s): 5 m/s

Impulse (Ns): 20 Ns; Change in Momentum (kg m/s): 20 kg m/s; Final Velocity (m/s): 7 m/s

Example 3

Force (Newtons): 15 N; Time (seconds): 1 s; Mass (kilograms): 3 kg; Initial Velocity (m/s): 10 m/s

Impulse (Ns): 15 Ns; Change in Momentum (kg m/s): 15 kg m/s; Final Velocity (m/s): 15 m/s

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