Escape Velocity

This physics video tutorial explains how to calculate Earth's escape velocity as well as Mars.

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[IKPENSilas]

Your ability to explain complex concepts is 💯

[shasha]

organic chemistry tutor is the reason im living today.

[mcdevious]

Nice. Thanks. I was doing the calculation based on normal acceleration of an object ("circling") is the square of its velocity divided by the local radius of curvature. Set this equal to g for the Earth and you become weightless. This gives an answer that is off by the square root of two (7910 m/s) for the escape velocity. Interestingly, using energy (as you did, which should be more universal), you get [basically] the same formula with two in the numerator under the radical sign, which accounts for the error. I like your presentation board. Great job.

[Nazir_]

You really helped me in my education ❤️
Love from Bangladesh 🇧🇩

[nwaforcorizo]

The capacity of your cerebrum is the best I've never seen ever 💯💯💯💯

[colinvaughn]

this is pretty convenient, I'm making a spaceship physic simulator.

[kebbyjunior]

as a student studying electrical engineering ..your videos helped me alot so far

[poky]

I gotta know, how did you amass all of this knowledge? How many diplomas do you have? You make great content, easily understandable and excellently explained. Thank you for making videos

[nwaforcorizo]

Hi bruh,
Honestly I really don't know how to thank you for all you're impacting on me..
Technically, you god in terms of teaching bruh..

Like I do everything wonders how you mastered things so fuckin' quickly this way...


I'm really thankful for you did for me bruh🎉❤
Greetings from Nigeria

[aaron]

Okay, let's solve this step-by-step:

1) (6.67 x 10^-11) x (5.972 x 10^24)
= 3.9842 x 10^14

2) 3.9842 x 10^14 / (6.38 x 10^6)
= 6.2400 x 10^7

Therefore, the final result is:

6.2400 x 10^7

[kgkg]

thank you so much sir I appreciate for all of your videos

[jasxnn]

I remember on the last day on physics class, our teacher went over this, it was cool as shit

[philg]

The escape velocity is exactly that by which the thing escaping will make it to infinity in infinite time, thus never stopping! LOL

[getvictored]

could someone kindly explain to me how we can just add a negative sign to the intial potential energy. I literally cannot understand why, i've looked everywhere for an explanation and I can't find a single one i can easily understand.

[kaizer]

Teacher please can i know what is the software that you use for drawing! ؟

[KhaoticDeterminism]

question if we may here…

new to this stuff but what would exit velocity be for the moon?

🤔

#science

[koreanlover]

Ehm, regarding the use of r, when I am given the distance the rocket has moved...when I am doing the calculations, will I only consider the radius of the earth alone or add both distances to represent that r value.
Kindly clarify.

[Das]

With pe = gmm/r isnt that the same formula as force?so how does the dimemsions allow for f to be ewual to energy?

[aaron]

Sorry what? Isn’t the escape of Mars = square roof of 2x(6.67430x10^-11)(6.39^23)/ 3389.5= 158, 660? I think you got the radius of Mars wrong or something?

[PhysicsFANatic]

Can someone explain why the potential energy has to be negative, I tried to look up, but didnt find anything :(