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Motion: basic

  1. Feb 9, 2015 #1
    Fiona rides her skate board up a ramp. She begins with a speed of 8.0m/s but slows with a constent deccsalerarion of 2.0m/s. She tracked some distance up the ramp before coming to rest, then rolled down again. Ignoring air resistance and friction; calculate.
    A) the distance that Fiona travels up the ramp before stopping.
    B) the time that it takes Fiona to tech this highest point.
    C) Fiona's velocity after 5.0s has elapsed.

    v^2 = u^2+2ax
    v^2=8^2+2XaX9.8
     
    Last edited by a moderator: Feb 9, 2015
  2. jcsd
  3. Feb 9, 2015 #2

    BvU

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    That doesn't go far in fullfilling the mandatory PF requirements to use the template ! You must have seen it come by:
    1. The problem statement, all variables and given/known data
    2. Relevant equations
    3. The attempt at a solution​

    I recognize the equation, but do you know what it is and what it means ? I fear with great fear, since I see you fill in 9.8 for an x in the line above, so that's why I ask.

    Note that part A) asks for a distance, part B) for a time and part C) for a velocity.
     
  4. Feb 9, 2015 #3
    Visualize the motion on velocity vs. time graph.
     
    Last edited: Feb 9, 2015
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