Practice Problem: Kinetic and Potential Energy of a Ball on a Ramp

Practice Problem: Kinetic and Potential Energy of a Ball on a Ramp

Look at this nifty ramp you made! Let’s roll some stuff off of it, shall we? Good thing we know all about potential energy and kinetic energy, because that will allow us to calculate all kinds of things, like the velocity of the ball at any given point.

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48 Comments

  1. Faze Zade 147 on August 23, 2021 at 10:33 pm

    thanks dad ur the best



  2. RookiePlays on August 23, 2021 at 10:35 pm

    So when an object falls does kinetic energy increase,decrease,or it stays the same?



  3. Farzana Tahi on August 23, 2021 at 10:35 pm

    Thank you 😊



  4. Mary Nd on August 23, 2021 at 10:35 pm

    what about the rotational kinetic energy? do we consider it here?



  5. Toxic Gamer on August 23, 2021 at 10:37 pm

    Great professor



  6. Abdullah Ahmed on August 23, 2021 at 10:38 pm

    i did it in a slightly different way but got the same answers. i just thought that since work done in a gravitational field is independent of the path taken, i just did the math to find out how much work was done to get the ball to point A and B respectively, equate that to the kinetic energy and find out the velocities. got the same answers.



  7. pattissiere on August 23, 2021 at 10:38 pm

    What about centripetal velocity? Would it be the same as the calculated one through conservation of energy?



  8. Yasmin on August 23, 2021 at 10:39 pm

    How do you find the ke if you don’t know how tall the ramp is



  9. Aruna lakshan on August 23, 2021 at 10:39 pm

    thanks



  10. Samyak on August 23, 2021 at 10:40 pm

    Thank you very much sir.



  11. Lucas Podiak on August 23, 2021 at 10:41 pm

    This is so hot



  12. Dennis Geurts on August 23, 2021 at 10:44 pm

    I still dont get it. I need to see all the math equations.



  13. 20CSE29 Saket Kumar on August 23, 2021 at 10:50 pm

    another question that i can solve



  14. funnyware on August 23, 2021 at 10:51 pm

    POV: You’re in Grade 8.



  15. THE ANONYMOUS on August 23, 2021 at 10:54 pm

    THE BEST I FOUND
    THANKSSSS 💙



  16. Pokemon Trainer on August 23, 2021 at 10:55 pm

    You should’ve wrote the solutions. Of some of them..
    So I can easily get it😢



  17. Arantza Alvarez on August 23, 2021 at 10:55 pm

    Cool!



  18. Cave Linguam on August 23, 2021 at 10:56 pm

    That was fun. Thanks. I love energy



  19. Mauricio R on August 23, 2021 at 10:57 pm

    God i love this shit



  20. cherry blossom girl on August 23, 2021 at 10:57 pm

    thank you!



  21. Theoretical Hub on August 23, 2021 at 10:57 pm

    Thanks dad



  22. Melanie Buell on August 23, 2021 at 10:59 pm

    Does this experiment assume that the ball stops when it lands after leaving the ramp? Otherwise wouldn’t the total kinetic energy continue through the roll?



  23. EESHAN PANDEY on August 23, 2021 at 10:59 pm

    Most satisfying video. Thank you so much.



  24. rolf johansen on August 23, 2021 at 11:00 pm

    if that inclined plane has been linear(straight) , circular , or something else, would not that affect the speed at the lowest point?



  25. Goldy Roy on August 23, 2021 at 11:00 pm

    Thanks Sir, for clearing my Concept…🙏🙏 Love from India ❤ Sir I find Difficulty in using Law of Conservation of Momentum 😔😭 how to use



  26. Grace on August 23, 2021 at 11:00 pm

    thanks



  27. goincrazy11 on August 23, 2021 at 11:01 pm

    Thanks professor Dave!



  28. IMJUST2HUNCHO on August 23, 2021 at 11:01 pm

    3.14 is the answer



  29. PODCAST on August 23, 2021 at 11:01 pm

    Super sir



  30. Krishna Priya on August 23, 2021 at 11:02 pm

    U r such amazing sir🤩😘😘



  31. Ash D on August 23, 2021 at 11:02 pm

    Thanks so much, Professor Dave!



  32. Elaine Amaral on August 23, 2021 at 11:02 pm

    Thanks Professor Dave this will be on more tool to help my students as we come to grips with distance learning.



  33. Josie Manato on August 23, 2021 at 11:03 pm

    Thanks you propisor dave



  34. Lucas Barbee on August 23, 2021 at 11:05 pm

    thanks you love from poland <3



  35. Vartika Sachan on August 23, 2021 at 11:06 pm

    Sir please achche se samjhaiye



  36. harsh singhal on August 23, 2021 at 11:09 pm

    it shouldn’t be 7.02. it is exactly 7. check it again



  37. 20CSE29 Saket Kumar on August 23, 2021 at 11:10 pm

    Man, add more videos to your classical physics playlist and this



  38. Eshan Sandhu on August 23, 2021 at 11:10 pm

    Why didn’t you take rotational energy into account



  39. Billy Danealter on August 23, 2021 at 11:11 pm

    still blank how to calculate the last step to get velocity



  40. James Hostetler on August 23, 2021 at 11:12 pm

    why so many dislikes on this one?



  41. Michael Lo Re on August 23, 2021 at 11:12 pm

    Um I don’t really get it but okayyyy



  42. B C. on August 23, 2021 at 11:13 pm

    🖕🐕💩



  43. Hazel Borlaza on August 23, 2021 at 11:19 pm

    Welcome to grade8 AHAHAHAHAH



  44. RUFAID P V on August 23, 2021 at 11:19 pm

    Sir while rolling it has rotaional kinetic energy also , is it used to convert into potential energy



  45. Riccardo Supino on August 23, 2021 at 11:19 pm

    ty daddy



  46. Ronalyn Puno on August 23, 2021 at 11:22 pm

    Please can you explain it in easy way



  47. Charlie Little on August 23, 2021 at 11:26 pm

    Thank you Dave



  48. sspicy on August 23, 2021 at 11:27 pm

    Excellent