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MotionLab
Force applied over time — equal to the resulting change in momentum.
The impulse-momentum theorem says J = Δp — this is why airbags and crumple zones work: spreading a collision over more time reduces the peak force needed to produce the same change in momentum.
A small force over a long time can deliver the same impulse as a large force over a short time — this is the core idea behind cushioning and safety equipment design.
Impulse (N·s)
25
J = F · t
What you entered
J = F × t
50 × 0.5= 25 N·sResult
Impulse (N·s): 25
A 50N force applied for 0.5s delivers an impulse of 25 N·s.