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Homework Help: Physics homework problem

  1. Dec 5, 2009 #1
    1. The problem statement, all variables and given/known data
    A 3.86 kg block slides down a smooth, fric-
    tionless plane having an inclination of 28◦ .
    The acceleration of gravity is 9.8 m/s2 .

    Find the acceleration of the block.
    Answer in units of m/s2.

    2. Relevant equations
    idk what equation to use?

    3. The attempt at a solution
  2. jcsd
  3. Dec 5, 2009 #2


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    Science Advisor
    Homework Helper
    Gold Member

    Newton's 2nd law. Choose the x axis parallel to the incline, and identify the force acting parallel to the incline. Then apply Newton 2 in the direction of the incline.
  4. Dec 5, 2009 #3
    Last edited by a moderator: Apr 24, 2017
  5. Dec 5, 2009 #4
    Thank you jay(:
    And doc- im sorry i didnt see that post show up so i posted another one
  6. Dec 5, 2009 #5
    No problem, are you good to go now?
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