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Consider an underdamped spring-and-mass harmonic oscillator with @o = 10s¹ and y = 1 s-¹.
Find the expressions for x(t) and sketch them graphically if
a) at t = 0, x = 1 m and x = 0;
b) at t = 0, x = 0 and x = 1 m/s.

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