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a) y(2) = 8 *(1/2)^(2/2) mg = 4 mg
b) y(3) = 8 *(1/2)^(3/2) mg = 8/(2 rad(2)) mg = 2 rad(2) mg = 2.83 mg
c) y(T) = 0.5 mg
(1/2)^(T/2) = 0.5/8 = 1/16 = (1/2)^4
T/2 = 4 h
T = 8 h
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