What is the easiest angle to pull a box with friction?

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  • Опубліковано 26 гру 2024

КОМЕНТАРІ • 9

  • @therhythm42
    @therhythm42 4 роки тому +12

    This is great. A mention of how the result could’ve been found using calculus would’ve been a nice teaching bonus.

    • @DotPhysics
      @DotPhysics  4 роки тому +1

      True.

    • @fizixx
      @fizixx 4 роки тому

      Maximize the denominator, which will minimize the Tension, and doing that gives a value of ~1.07965 at x ~ 0.386526 radians (22.1463° )

    • @jimmyyang1359
      @jimmyyang1359 4 роки тому

      Something like solving dT/d(theta)=0?

    • @waynewagner2255
      @waynewagner2255 Рік тому

      @@fizixxInteresting. I'm getting that the best angle is tan-1(mu) or 22.195.

  • @nicofraternali9946
    @nicofraternali9946 4 роки тому +3

    Loved this, I should start learning how to code in Python

  • @XzatonJW
    @XzatonJW 4 роки тому +5

    The numeric approximation is nice, but you could have solved it analytically (using derivative wrt theta and solving when its 0) - that way you demonstrate that this gives you the correct solution and why you use numeric methods, to solve "complicated" equations easily

    • @DotPhysics
      @DotPhysics  4 роки тому +7

      Yes, absolutely. You could take the derivative to solve this also. However, I made this for an algebra-based class so they could do this without calculus.
      Actually, I think this way also helps students understand the fundamental idea of the derivative and the max-min problem.

  • @unsal7290
    @unsal7290 10 місяців тому

    I calculated the derivative of T and it turned out that theta = arctan(mus)