Energy, Work & Power (3 of 31) Kinetic Energy, Example No. 2

[@ess8057]

i've been trying to learn this for days and i literally just got it in 5 minutes, bless ur soul.

[@historyandhorseplaying7374]

This is an interesting concept and a great video. Am constructing a mathematical model for the movement and expenditure of energy in racehorses, and one of the most difficult things to understand about racing has been the concept of why a horse that takes the early lead in a race is likely to ultimately win the race. It appears to be because, since most energy expenditure comes in acceleration, if a horse is in the lead it does not need to accelerate (i.e. “catch up to” any other horse), so its energy expenditure will be minimal, compared to horses who must come from behind. On the other hand, the concept you have explained illustrates how speed horses who compete with each other the whole way in the race- that is, who constantly try to outrun (out-accelerate?) each other, burn out by expending all their energy. Perhaps this is too simplistic use of the concept but perhaps it holds some truth.

[@sahilsharma1985]

2020 and its still helpful, thanks so much !

[@shabbirhussain2160]

great lecture for students. awesome

[@osmanaltanyuksel1884]

So can we say that net work is equal to 32000 Joules Sir?

[@stepbystepscience]

Yes.

[@albertopoli8896]

Kindly an help to me. When I put the smartphone on "lye" position and I read under title, the under title goes on your word explanation :could you change this?

[@beanenita9840]

Thank you Sir for this informative video 💕 Your videos really had helped me in studying Physics. Please continue creating videos like this. God bless 🍀

[@stepbystepscience]

I try to make one or two videos a week, thanks for the positive support.

[@emmal1141]

Awesome!!

[@stepbystepscience]

+kung alfred Thanks for the comment. You can a listing of all my videos from my website, www.stepbystepscience.com

[@jessicafionaly]

Wow

[@MyChannel10495]

amazing

[@apoyldz4802]

We don't need mass why you choose 500 kg. Isn't that make our calculate harder? We don't need the mass because it's same in every equal

[@stepbystepscience]

Yes but to just make the complete point. Thanks for watching and commenting.

[@apoyldz4802]

Ur welcome

[@daxtonhurst]

First

[@stepbystepscience]

First what???

[@louveniataylor1375]

Physics is nothing but word games 😑

[@stepbystepscience]

Not really, but you do have to know the definition fo the words