Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Pressure on incline

  1. Nov 7, 2006 #1
    An ice cube, p = 917 kg/m^3, is sliding down a 16 degree frictionless incline. The sides of the cube each have a length of .75 m. What pressure does the cube exert on the incline?

    P = F / A
    = F / .75^3
    = F / .42

    F = ma
    = 917 * a

    I am having a problem figuring out the Force for this equation. I know it's simple, just can't put my finger on it. Please help.
  2. jcsd
  3. Nov 7, 2006 #2


    User Avatar
    Homework Helper

    Which force is acting on the cube? One component of that force is in the direction of the motion of the cube, and one is perpendicular to the contact surface (m^2 !) of the cube and the incline.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook