Impulse | Physics | Khan Academy

Impulse is a change in an object's momentum. The impulse experienced by an object is equal to the net force acting on the object multiplied by the length of time the force acts (Δp = ΣFΔt). The same impulse can be caused by a large force acting for a short time, or a small force acting for a long time.

00:00 - Intro
00:52 - What is impulse?
03:54 - Which car gains more speed?
07:36 - Egg dropped on a stone breaks. Why?
11:09 - Crumple zones

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[ThatRedhedd]

Makes sense! Always phrased it as the car "absorbing" the force, thus reducing the force absorbed by the vehicle occupants - as if the crumpling car says, "I got this! Taking one for the team." The soft surface has the same relationship to the falling egg.

[Chilekwa-and-bryan]

It made a little more difference for me, coz did not grasp it all in my physical class. Thanks.

[pradeepk]

Please create a playlist. It will be more useful. Thanks

[bluefanta]

I had never realized how Newton had shaped our world.

[HairyPinkTroll]

0:48 how about bumper cars that only go 20 mph or golf carts, ebikes, rollerskates 🛼if you have paved roads

Insurance is expensive and mandatory in the USA