PHysics

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What is the total energy of a 15-kg mass attached to a spring oscillating horizontally with an amplitude of 20 cm and an angular frequency of 32 rad/s?

  • PHysics -

    w^2 = k/m =>
    k = m*w^2
    =15*32^2
    =15,360 n/m
    E =(1/2)k*A^2
    =(1/2)*15360*(.20)^2
    =307 J

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