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Compute linear momentum, mass, or velocity from the other two, with kinetic energy and km/h conversion
Details
Linear momentum is the product of an object's mass and velocity — a measure of how hard it is to stop.
Equations (three-way solver):
Kinetic energy KE = ½ · m · v². Velocity in km/h = v · 3.6. Momentum is conserved in closed systems.
Execution
Fill in the form, run the tool, and review the result in one place.
Samples
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Tool usage guide
The Momentum Calculator helps you quickly compute linear momentum, mass, or velocity using the formula p = mv. It also automatically calculates the corresponding kinetic energy and converts velocity to kilometers per hour (km/h) for comprehensive physics analysis.
Background
A student is analyzing a dynamics problem involving a 1500 kg car traveling at a velocity of 20 m/s.
Problem
Determine the linear momentum of the car.
How to use
Set 'Solve For' to 'Momentum (p)', enter 1500 in the Mass field, and 20 in the Velocity field.
Outcome
The tool calculates a momentum of 30000 kg·m/s, along with a kinetic energy of 300,000 Joules and a velocity of 72 km/h.
Background
A lab assistant has a projectile with a mass of 2 kg and a measured momentum of 10 kg·m/s.
Problem
Find the velocity of the projectile in both m/s and km/h.
How to use
Set 'Solve For' to 'Velocity (v)', enter 10 in the Momentum field, and 2 in the Mass field.
Outcome
The tool determines the velocity is 5 m/s (18 km/h) and calculates a kinetic energy of 25 Joules.
Momentum is in kilogram meters per second (kg·m/s), mass is in kilograms (kg), and velocity is in meters per second (m/s).
Yes, it automatically calculates kinetic energy (KE = ½ · m · v²) in Joules based on the mass and velocity.
Yes, the calculator automatically outputs the velocity in kilometers per hour (km/h) alongside the standard m/s.
Select 'Mass (m)' from the 'Solve For' dropdown, enter the momentum and velocity, and the tool will calculate the mass using m = p / v.
Momentum (p = mv) measures an object's motion and resistance to stopping, while kinetic energy (KE = ½ · m · v²) measures the energy associated with that motion.