Impulse (J) is the change in momentum of an object when a force acts over time: J = F × Δt = Δp = m × Δv. A large force over a short time (collision) or a small force over a long time can produce the same impulse.
💡
Pro Tip
The impulse-momentum theorem explains why following through in sports matters: extending contact time increases the force applied to the ball, increasing the impulse and final velocity.
⭐
Did You Know?
Airbags in cars work by increasing the collision time from ~2 ms (against the steering wheel) to ~40 ms (against the airbag). Same impulse but 20× longer contact time means 20× less force — the difference between injury and death.
References
🔒
100% Bure
Hakuna usajili
✓
Sahihi
Mifumo iliyothibitishwa
⚡
Papo Hapo
Matokeo unapoandika
📱
Tayari kwa Simu
Vifaa vyote