Physics

Problem

A metal sphere of mass

2.5\,\text{kg}

and radius

6.0\,\text{cm}

is fully submerged in oil of density

8.5 \times 10^{2}\,\text{kg}\,\text{m}^{-3}

on Earth (

g = 9.8\,\text{m}\,\text{s}^{-2}

). Which is closest to the magnitude of the buoyant force on the sphere? a)

8.9\,\text{N}

0.77\,\text{N}

7.5\,\text{N}

24\,\text{N}