MCAT Question of the Day
    •

    Q:

    		 A 1kg disk slides with constant velocity on a surface with a coefficient of kinetic friction of 0.4. How much energy is expended to slide the disk a distance of 50 meters?
    		 

    A

    		 20J

    B

    		 50J

    C

    		 120J

    D

    		 200J



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