Recent content by Ruinmaniac

  1. R

    Parabolic track dynamics + calculus (Hard)

    Yeah I did that however the unfortunate thing is that this has no answer key so I cannot even check. Regardless, you were extremely helpful, thank you!
  2. R

    Parabolic track dynamics + calculus (Hard)

    Sorry, that's my imagination talking, I imagined the ball and track inside a car and the car is moving to the left in this case. You are right there is no horizontal force acting on the ball but, when the "car" reaches constant acceleration, the ball should be stuck at one point, where the Fnet...
  3. R

    Parabolic track dynamics + calculus (Hard)

    Homework Statement The problem is in the photo below: https://www.physicsforums.com/attachment.php?attachmentid=71928&stc=1&d=1407288108 Text: Figure CP6.74 shows an accelerometer, a device for measuring the horizontal acceleration of cars and airplanes. A ball is free to roll on a parabolic...
  4. R

    How Do You Prove the Equation and Find the Block’s Speed at Position L?

    Thanks, I think I got it. Sorry for the bad quality photos, my webcam is the only camera I have when doing late night physics :P 1. https://www.physicsforums.com/attachment.php?attachmentid=71883&stc=1&d=1407216234 2...
  5. R

    How Do You Prove the Equation and Find the Block’s Speed at Position L?

    Homework Statement A block of mass m is at rest at the origin at t = 0. It is pushed with constant force Fo from x = 0 to x = L across a horizontal surface whose coefficient of kinetic friction is μk = μ0(1 - x/L). That is, the coefficient of friction decreases from μ0 at x = 0 to zero...
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