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Kinematics problems: Displacement in Moon & Proportionality

  1. Nov 18, 2016 #1
    1. The problem statement, all variables and given/known data

    An astronaut on the moon throws a stone horizontally with a speed V0. If the acceleration due to gravity on the moon is 1⁄6 that of the Earth, by what factor will the horizontal distance traveled by the stone, d, change?

    Answer Options:
    2

    2.44

    1.20

    36

    6


    2. Relevant equations

    U1L6a1.gif

    3. The attempt at a solution

    Rearranging kinematic equation to make displacement the subject

    upload_2016-11-18_12-45-0.jpeg

    Hence, inverse proportionality suggests displacement will increase by a factor of 6 but this is not the answer
     
  2. jcsd
  3. Nov 18, 2016 #2

    PeroK

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    When you use any formula, you must understand why that formula applies to the situation you are dealing with and what each term in the formula represents.

    In this case, are you dealing with motion in one direction?

    Also, what about the height above the ground that the stone is thrown?
     
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