Recent content by agentd00nut

  1. A

    Inertial Disk Lab: Physics 11 H Experiment

    Ok, in my Physics 11 H class we did a lab with an inertial disk (a disk with a hub in the center, a string is attached to the hub like a huge half a yoyo where the yoyo is stationary and weights are the fingers falling down) and i need to be able to calculate the tension in the string for...
  2. A

    Centripetal acceleration problem

    ok i have this problem A train traveling at a constant speed rounds a curve of radius 375 m. A chandelier suspended from the ceiling swings out to an angle of 18.0° throughout the turn. What is the speed of the train? so far i have 9.8sin(18)=(v^2)/375 v^2/R being force and i got V=33.7...
  3. A

    Calculating the Speed of a Pendulum Using the Law of Conservation of Energy

    thank you so much for the help, i can get it from here
  4. A

    Calculating the Speed of a Pendulum Using the Law of Conservation of Energy

    well KEi=0 since there is no movement, PEi = mgh so I am thinking 3.3cos(24)=h, but it is massless so i don't know what to do with it, and at the end, PE=0 and KE= .5mv^2, i don't know what to do when it is massless
  5. A

    Calculating the Speed of a Pendulum Using the Law of Conservation of Energy

    oh sorry, I am new here, well i missed the lecture for this in class so I am kinda just poking in the dark trying to use my book and i came up with (3.3/9.8)cos(24) and i have no idea what to do with any of this, really frustrating, then i though maybe i could use something about KE being...
  6. A

    Calculating the Speed of a Pendulum Using the Law of Conservation of Energy

    hi, i can't figure out which equation to use could anyone give me a nudge in the right direction with a formula please? thank you A 3.3 m long pendulum is released from rest when the support string is at an angle of 24° with the vertical. What is the speed of the bob at the bottom of the swing?
Back
Top