A cylindrical plastic bottle of negligible mass is filled with 310 ml of water and…
PHYSICS · Single correct · A Level · Physics · Further mechanics and thermal physics · Further mechanics and thermal physics
Problem
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 ω . If the radius of the bottle is 2.5 cm then ω is close to: (density of water = 103 kg/m3 )
(1) 3.75 rad s−1
(2) 1.25 rad s−1
(3) 2.50 rad s−1
(4) 5.00 rad s−1