# A cylindrical plastic bottle of negligible mass is filled with 310 ml of water and left floating in a pond with still water. If pressed downward slightly and released, it starts performing simple harmonic motion at angular frequency . If the radius of the bottle is 2.5 cm then  close to: (density of water =103 kg/m3) (a) 5.00 rad s−1 (b) 1.25 rad s−1 (c) 3.75 rad s−1 (d) 7.95 rad s−1

## Question ID - 50282 :-  A cylindrical plastic bottle of negligible mass is filled with 310 ml of water and left floating in a pond with still water. If pressed downward slightly and released, it starts performing simple harmonic motion at angular frequency . If the radius of the bottle is 2.5 cm then  close to: (density of water =103 kg/m3) (a) 5.00 rad s−1 (b) 1.25 rad s−1 (c) 3.75 rad s−1 (d) 7.95 rad s−1

3537

Extra Boyant force=Axg

B0+B×mg=ma

B=ma

A=

W2=

W=

==7.95

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