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Homework Help: Incline plane problem - acceleration, time, and velocity

  1. Sep 14, 2014 #1
    Just need someone to check if this is right.

    This question=frictionless, freefall, etc.

    We have an incline plane. Determine the amount of acceleration due to gravity both parallel and perpendicular to the incline.
    Would the answer be: parallel=9.8sinθ and perpendicular=9.8cosθ

    Okay, lets say we have an inclined plane regardless of the angle, let's just make it 20 degree for instance.

    The distance an object have to travel is 2m down the incline.

    It would take the object 1.09 seconds to reach the bottom of the incline.

    So based on this, the height above ground the object is currently at is sin20=h/2. h=.684 m.

    1. The time it takes the object to drop vertically at the same height as the starting position of the object on the incline plane is comparably shorter than it would take the object to slide down the incline.

    2. Both their final velocity are the same.

    Make a predictive statement about the path of dependence of accelerations due to gravity.

    Acceleration increases as the angle increase up to a maximum of 2 m/s^2 at 90°.
  2. jcsd
  3. Sep 15, 2014 #2

    Simon Bridge

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    Science Advisor
    Homework Helper

    It looks to me that every part is, in some important way, incorrect.
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