Q 02: a 10 kg mass is attached to a spring having a spring constant of 140 N/m. The mass started motion from the equilibrium position with an initial velocity of 1m/sec in the upward direction and with an applied external force F(t) = 5sint. Find the subsequent motion of the mass if the force due to air resistance is -90v N Form the equation of motion and the solution as a displacement of the mass.

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A: The Solution is given below

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