A cylindrical object of outer diameter 20 cm and mass 2 kg floats in water with its axis vertical. 1f it is slightly depressed and then released, find the time period of the resulting simple harmonic motion of the object.

Given, the diameter, d=20 cm. Therefore, radius is r=10 cm.

Let the object be displaced a distance “x” from its equilibrium.


Therefore, volume of the immersed object,


The buoyant force() would constitute the driving force. Let the density of water be .





Now, time period,


(ANS)


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