JAMB - Physics (2024 - No. 85)
Calculate the upthrust on a spherical ball of volume 4.2 x 10\(^{-4}\)m\(^{3}\) when totally immersed in a liquid of density 1028kgm\(^{-3}\)
5.2N
4.3N
3.0N
2.4N
Explication
Upthrust(Force) = volume of object x density of liquid x g = V x \(\rho\) x g
U = 4.2 x 10\(^{-4}\) x 1028 x 10 \(\approxeq\) 4.3N