Momentum Calculator
Momentum calculator
Compute momentum from mass and velocity (p = mv).
Result
15 kg.m/s
Uses p = mv.
Physics signal
Advanced options
Formula
p = m x v Symbol legend
| Symbol | Meaning | Unit | Copy |
|---|---|---|---|
p | Linear momentum | kg.m/s | |
m | Mass | kg | |
v | Velocity | m/s |
- Enter object mass.
- Enter velocity in signed or unsigned form.
- Multiply mass and velocity to obtain momentum.
Example
Worked example: 3 kg at 5 m/s
- 1 m = 3
- 2 v = 5
- 3 p = m x v = 3 x 5 = 15
Momentum is 15 kg.m/s.
How
- Enter mass in kilograms.
- Enter velocity in meters per second.
- Read momentum output in kilogram meter per second.
Avoid
- Treating momentum and kinetic energy as interchangeable.
- Ignoring velocity direction sign when direction matters.
- Using grams without converting to kilograms.
Checks
Best fit
Momentum Calculator is built for compute linear momentum from mass and velocity using p = mv with support for signed velocity direction. If Momentum Calculator does not match the input scope, compare the answer with a second method.
Input check
Check p before calculating: it means linear momentum and is measured in kg.m/s.
Sanity check
For Momentum Calculator, use the worked example as a quick benchmark: Momentum is 15 kg.m/s. If the momentum calculator answer is far away, check whether an input, unit, or mode changed.
Before copying
Review this common issue first: treating momentum and kinetic energy as interchangeable.
FAQ
Can momentum be negative?
Yes, momentum sign follows the sign of velocity in your chosen axis.
What unit is momentum reported in?
Momentum is reported in kilogram meter per second.
Does this calculator include relativistic effects?
No, this uses the classical non-relativistic momentum relation.
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