Skip to content
PhysRef
Physics reference
Home
Formulas
Search
Constants
Tools
Guides
Sheets
Practice
Saved
Premium
Mechanics
Mechanics
Impulse
J
=
F
Δ
t
=
Δ
p
J = F\Delta t = \Delta p
J
=
F
Δ
t
=
Δ
p
J = FΔt = Δp
Impulse equals change in momentum.
Save
Share
Copy
Print
Variables
J
Impulse
Change in momentum
N·s
F
Average force
Force during collision
N
Δt
Time interval
Duration of force
s
Δp
Change in momentum
Final - initial momentum
kg·m/s
Derivation
From F = dp/dt, integrate: J = ∫F dt = Δp.
Your notes
Save note
0/5000