Inputs
Results
Initial momentum
—
Final momentum
—
Impulse F × Δt
—
Impulse Δp
—
Solved final velocity
—
Change in momentum
—
How it works
Momentum p equals m · v. Impulse J equals the integral of force over time and for constant force simplifies to F · Δt. Impulse equals change in momentum: J = Δp.
- Provide any consistent set of inputs. If final velocity is blank but mass and impulse are known, it will be solved.
- Units are converted to SI internally. You can compare impulse from force × time against change in momentum and an optional manual entry.
- The chart visualizes a constant-force scenario across the interval.
FAQs
Momentum is the product of mass and velocity and describes motion. Impulse is the effect of a force over time and equals the change in momentum.
No. If mass and initial and final velocities are known, impulse can be obtained as Δp = m·(vf − vi).
This tool assumes a constant average force for the interval. For time-varying forces, the true impulse is the area under F(t). Use the manual impulse box if you know that value.
Yes. Enter negative velocities to represent motion opposite the positive axis. Signs carry through calculations, including change in momentum and impulse.
Differences may come from rounding, unit choices, or inconsistent inputs. Check units and ensure the same interval and mass are used. Small discrepancies are flagged by a warning banner.
Inputs are converted to SI base units: kilograms, meters per second, newtons, and seconds. Impulse and momentum are reported in N·s which equals kg·m/s.
Yes. Use the Download CSV button to export time and momentum values along with key summary results.