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8. A mass on a spring oscillates along a vertical line, taking 12 s to complete 10 oscillations.
a. Calculate (i) its period (ii) its angular frequency
b. Its height above the floor varies from a minimum of 1.00 m to a maximum of 1.40 m.
Calculate (i) its amplitude (ii) its maximum velocity (iii) its acceleration when it is at its
lowest position.

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