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Simple Harmonic Motion

Q- A block is suspended by a vertical spring of constant 1800 N/m and makes 5.5 oscillations per second.

(a) Find the mass of the block.

(b) What is elongations in the spring if the block is at rest in equilibrium?

(c) If the block is pulled down by 2.5 cm from equilibrium position and released, write the equation of subsequent motion of the block.  

Solution:

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