Physics Lecture – 17 – Newtons Third Law

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37 responses to “Physics Lecture – 17 – Newtons Third Law”

  1. NoLimitKing Avatar

    Hey smart ass, this is Newton’s second law. Besides, stop acting like you’re a physics expert when you know very little about it.

  2. Shrey Arora Avatar

    Wow, Bucky weighs 1kg!

  3. Tejbeer Singh Avatar

    newton would have used an apple as an example

  4. Jorge X Avatar

    You could have used the punch in the wall example man, i was confused about what were you talking about until you used the arrows!

  5. Patrick Lindbom Avatar

    1:26 Is that you, Christopher Walken?

  6. michael delaney Avatar

    Newtons third law seems to apply to the surface of the planet where gravity is met with the extent of centrifugal force. It appears as if the centripetal force is the pair force to gravity on the surface of a planet. Centrifugal force being the "up" force and gravity being the "down". So does this mean that Earth is not accelerating? Now I am confused

  7. Poison Viper Avatar

    Watermelons grow on trees! I feel so stupid right now…..
    (Im joking I know they grow of vines! lol)

  8. anonymous john Avatar

    do any of you now if there is a guide like this on single variable calculus i can find one any ware

  9. Ace Arma Avatar

    i hate to nitpick, but you cant cut a tree branch with scissors…#wrekt

  10. Dawn Callme Avatar

    Is the force that is contradicting the force exerted by gravity synonymous to what we call the Normal Force? *sorry if the question is too dumb I just really suck in physics sooo.. peace

  11. Zayed Shebani Avatar

    it's newton second law. Not third law

  12. Bulkbs Avatar

    These video's are helpful but water melon don't grow on trees lol

  13. Pete Friesen Avatar

    Can you make a video about Newton's Third law During Acceleration?

  14. Alec Smith Avatar

    But you would be moving because the earth is turning

  15. Karthik Sravan Avatar

    For more understanding 3rd law comes into play when u THROW A BALL AT A WALL(action) THE BALL COME BACK TO U (the opposite reaction).::DDD

  16. Karthik Sravan Avatar

    Ok when i saw F=ma I thought about 2nd law

  17. Karthik Sravan Avatar

    This is the 2nd law not the Third!!!!!

  18. nyoven raj Avatar

    i can used coconut as a example bro..

  19. Bob Bee Avatar

    What about the rotation of the earth?

  20. rhys dear Avatar

    "pear, thats my favorite fruit" hahahaha love it

  21. Dutchdank420 Avatar

    Magnitude (or quantity) would be like something that is scalar and not vector. For example: Speed is a magnitude or quantity (mph) or (m/s) and velocity is the corresponding vector (Speed + direction). Just like how Distance is scalar and a quantity (meters) or (feet) or (miles) and its vector is Displacement, which = (distance + direction)

  22. Awesome Bent Avatar

    Silly Bucky. Watermelons dont hang on trees, they lay on the ground 🙂

  23. jk-93 Avatar

    Well, he is correct for the purpose of Newton's 3 law, but F=ma describes only Newtons 2 law, where you take forces that affect in one object into account. Whereas N3 describes symmetrical forces affecting in each object (force/interaction between them). Acceleration can be calculated from the sum of forces that affect to said object and not from the forces that N3 describes.

    2: it describes stationary object (N2), and force pair (N3) would be: melon pulling tree down and tree pulling melon up.

  24. laserethwashere Avatar

    Bucky is correct, but you sir, are not

  25. 098josh098 Avatar

    Thanks man, my teacher is useless so this really helps

  26. Evee eve Avatar

    what is a magnitude Bucky?? does anyone know what he means by that?

  27. Izzy Avatar

    Newton's pairs of forces always act on different and are of the same type. The first "pair" was implied to be on the person, if so would not be a pair. The second "pair" certainly wasn't one.

  28. بدون اسم Avatar

    eff ma?? no. like. DISLIKEE!! lol :p

  29. Clay Knoll Avatar

    Hahahaha Watermelon tree shoe loaf

  30. 360gamehelpers Avatar

    Your favourite fruit is the Pear what a coincidence mine is the Bhut Jolokia

  31. Diabolist10 Avatar

    Bucky, for your watermelon tree example, can we call it terminal velocity since it has force pairs and constant speed and no acceleration ?

    Thanks

  32. cstprs Avatar

    I read somewhere that the opposite force to your weight is actually the force you exert to the Earth and not the normal force which prevents you from falling.

  33. jk-93 Avatar

    In Newtons 3 law forces have effect to different objects.

  34. Funkyyyyyy Avatar

    Air resistance isn't keeping the melon from dropping. The melon is stationary and ari resistance only occur with moving objects…

  35. TheAltF4ToWin Avatar

    That's what he's saying. Gravity is pulling the melon down and air resistance is keeping the melon from dropping. There's also tension on the end of the branch, but that's neither here nor there.

  36. jk-93 Avatar

    I think force pair would be: melon pulling tree down and tree pulling melon up,
    as an example of Newtons 3 law.

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