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Homework Help: Final Exam Question Help

  1. Jan 26, 2004 #1
    Final Exam Question Help!!!

    I need extra help. I'm studying for my Final Exam which is tomorrow and I cannot remember how to find forces of objects on an inclined plane. The question I'm having troubles with is:
    A 12.5 kg crate is placed on a ramp that is at an angle of 22 degrees from the horizontal. Find the acceleration of the crate would be down the ramp:
    a) in the absence of friction (answer 3.67 m/s-squared down slope)
    b) if the coefficient of kinetic friction is 0.0 (0.95 m/s-squared down slope)
  2. jcsd
  3. Jan 27, 2004 #2
    Resolve g into its component || and Perp to the inclined surface

    u will have gsin(theta) & gcos(theta) along || and perp to inclined surface respectively
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