A sphere of density and radius rests on the bottom of a tank of water

PHYSICS · Subjective · GCSE · Physics · Forces · Forces

Problem

A sphere of density

\rho

and radius

R

rests on the bottom of a tank of water. The buoyancy force on the sphere is

F_1

. A sphere of density

2\rho

and radius

\frac{R}{2}

is at the bottom of the same tank. The buoyancy force on the second sphere is

F_2

. What is

\frac{F_1}{F_2}

? A. 2 B. 4 C. 8 D. 16