Physics

Conservation of Momentum Calculator

Calculate the initial and final velocities of objects in collisions using the law of conservation of momentum

Calculation Mode*

Mass (kg)

Velocity (m/s)

m/s

Force (N)

Time Interval (s)

Mass of Object 2

Velocity 2 (m/s)

m/s

Momentum (p)

50.0000kg·m/s

p = m × v
J = F × Δt = Δp

Elastic: v₁ᶠ = ((m₁-m₂)v₁ + 2m₂v₂) / (m₁+m₂)
Inelastic: vᶠ = (m₁v₁ + m₂v₂) / (m₁+m₂)

Supported inputs

Input	Description
Calculation Mode	momentum · impulse · collision_elastic · collision_inelastic
Mass (kg) (kg)
Velocity (m/s) (m/s)
Force (N) (N)	For impulse calculation
Time Interval (s) (s)	For impulse: duration of force application
Mass of Object 2 (kg)	Enter the mass of the second object
Velocity 2 (m/s) (m/s)	For collision: initial velocity of object 2

Formula

p = m × v
J = F × Δt = Δp

Elastic: v₁ᶠ = ((m₁-m₂)v₁ + 2m₂v₂) / (m₁+m₂)
Inelastic: vᶠ = (m₁v₁ + m₂v₂) / (m₁+m₂)

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