MCAT Question of the Day
    •

    Q:

    		 An individual rides his bicycle in the positive x-axis. What is the direction of the frictional force at the point of the tire where it makes contact with the ground.
    		 

    A

    		 Positive y-axis

    B

    		 Negative y-axis

    C

    		 Positive x-axis

    D

    		 Negative x-axis



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