A coca – cola bottle is whirled in a horizontal circle of ra... | PHYSICS - UNIFORM CIRCULAR MOTION | SolveeIt | Solveeit

Today, August 20

Question

A coca – cola bottle is whirled in a horizontal circle of radius r as shown in Fig. where will the gas stay.

A

At the neck

B

In the middle

C

At the bottom

D

Anywhere

Answer

At the bottom

Explanation

Solution

F = mrω² the smaller the mass, the more is the radius to maintain the same force

Note : This is the principle of cream separator from milk, centrifuge machines used in laboratories and even the Earth is built in the same way. Heaviest masses close to the axis and the lightest at the surface.