Question

A mass weighing 19.6 N stretches a spring 9.8 cm. The mass is initially released from...

A mass weighing 19.6 N stretches a spring 9.8 cm. The mass is initially released from
a point 2/3 meter above the equilibrium position with a downward velocity of 5
m/sec.
(a) Find the equation of motion.
(b)Assume that the entire spring-mass system is submerged in a liquid that
imparts a damping force numerically equal to β (β > 0) times the instantaneous
velocity.
Determine the value of β so that the subsequent motion is overdamped.

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