If the mass of a skyscraper's pendulum damper is 4000 kg, and its maximum elastic potential energy is 140 J, what would be the maximum speed of the damper during its SHM? \text { A. } 1.87 \times 10^{-1} \mathrm{~m} / \mathrm{s} \text { B. } 2.65 \times 10^{-1} \mathrm{~m} / \mathrm{s} \text { C. } 350 \times 10^{2} \mathrm{~m} / \mathrm{s} \text { D. } 7.00 \times 10^{-2} \mathrm{~m} / \mathrm{s}

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