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Question based on laws of motion (inclined motion )

  1. Dec 10, 2015 #1
    1. The problem statement, all variables and given/known data
    what is the value of F needed so that block begins to move upward on frictionles incline plane .

    2. Relevant equations


    3. The attempt at a solution
    i made an attemp and got the answer - Mgtan(thetta)
    but the real answer is - mgtan(thetta/2)
     
  2. jcsd
  3. Dec 10, 2015 #2

    gneill

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    Staff: Mentor

    Hi Abhishek_R, Welcome to Physics Forums.

    You'll have to describe your problem more clearly: How (in what direction) is the force F applied? How is the angle ##\theta## defined?

    Did you draw a Free Body Diagram? Show us the work you did on your attempt.
     
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