Introduction to centripetal force | AP Physics 1 | Khan Academy

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Introduction to centripetal force, which accelerates an object toward the center of the circular path.
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AP Physics 1 on Khan Academy: Meet one of our writers for AP¨_ Physics, Sean. A physics teacher for seven years, Sean has taught AP¨_ Physics 1, AP¨_ Physics C, and Conceptual Physics. HeÕs also a former mechanical engineer. Sean is based in Boise, Idaho, and is a Khan Academy physics fellow, creating awesome new exercises and articles for AP¨_ Physics.
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[@tokenup420]

That picture is epic. Im sure Sal has unknowingly just created a super hero.

[@jesselam5867]

That's lit

[@harrisabdullah5769]

a superhero with a flaming tennis ball

[@DenovoTutor]

You inspired me to start my own RUclips channel for tutoring. Keep doing what you're doing Sal!

[@B1SQ1T]

One of your videos explained molarity better than a tutor who has a phD in chemistry. Thank you

[@optimus2008]

@@B1SQ1T Who tho? I'm expecting it to be the school teachers or someone.

[@B1SQ1T]

@@optimus2008 it’s a tutor i had in Vancouver, not a school teacher but even my school teachers aren’t that good

[@heyyymal]

Sir you should also have a Degree in Painting🤯❤️

[@RareSalmon93]

Great illustration! Thank you

[@TheScienceCube]

Nice way of showing centripetal acceleration by combining velocity vectors at 2 points!

[@huuphat1671]

Oh man I’ve just finished my exam on this subject

[@cloud8721]

Got an update?

[@sarvxnmusic2044]

Thanks a lot man...Explanation is clear

[@katlegokungoane3258]

ITS MAKING SO MUCH SENSE!!!!!!!!!!!!!!!!!!!!!!!

[@iamjp15]

keep making these videos

[@devanvelo3725]

Can you calculate the difference in centrifugal force in the North Pole compared to the equator, thanks?!

[@Karma-fh9ns]

May i know what software he used to do that kind of drawing? Blackboard style of drawing

[@quriositysquared1028]

Thank you

[@davidwallace5738]

You know buddy, I'm a high school dropout with a GED who is interested in physics. I actually for the most part understand your explanation concerning the inward force especially at the end. Thank you!

[@zuesr3277]

Sal please make calculus based physics

[@youyoumu]

This is not yet in playlist right?

[@1RedShadow]

Dope

[@iosui8109]

Nice

[@AuroraNora3]

Nice drawing

[@XiAnais-bt9ke]

Not even on the subject yet but it's very cool

[@LinFiles]

What about a tetherball? The pole is not a human pulling the string inward. And the rope gets shorter as it goes around. How do you explain this kind of centripetal physics?

[@spurti]

But why we have to shift the velocity vector???

[@harrisabdullah5769]

0:03 Someones spinning a flaming tennis ball 🤣🤣🤣🤣

[@esotericmissionary]

"trencipital"?

[@justinsankar1164]

KICKS

[@stardust-reverie]

"now one question you might have been wondering..."
newton's third law newton's third law newton's third law
"...newton's first law might be nagging at you"
oh.