MCAT Question of the Day
    •

    Q:

    		 A spring with a 1kg mass attached to it oscillates with an amplitude of 15 cm. The frictionless surface on which it oscillates is replaced with a surface with a μk of 0.25. If the spring oscillates through 20 periods before coming to a halt, what was the original energy of the system? Assume each of the 20 periods covers the same distance.
    		 

    A

    		 7.5 J

    B

    		 15 J

    C

    		 30 J

    D

    		 The answer cannot be determined with the given information



    Periodic Motion | Quantitative Skills |
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