May '10
31
MCAT Question of the Day | MCAT Course


  • Q:

    A 10-kg object sits on a 30° incline as shown in the diagram below.



    What is the minimum coefficient of static friction needed to keep the object unmoving on the incline? Assume g = 10 m/s2. Note: the diagram is not drawn to scale.


     

    A

    sin(60°)

    B

    sin(30°)

    C

    sin(60°)/sin(30°)

    D

    sin(30°)/sin(60°)




    Tags: Forces | Quantitative Skills | Suggest a tag
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