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Question 16: A Mass spring system, the mass is \( 2 \mathrm{~kg} \), is being pushed away from its Equilibrium position by a distance of 4 \( \mathrm{cm} \), and then released; it oscillates For 20 swings in \( 5 \mathrm{sec} \). a) Calculate the period of the pendulum. b) What is the angular velocity of this spring? c) What is the value of the spring constant? d) Write the expression of the position of this pendulum as function of time.

Given data: Mass of the spring system, m=2kg Initially displaced by A=4cm and It oscillates For 20 swings in 5sec.