Question

What is upthrust? Write its unit.

Answer 1

Upthrust:

1. When an item is partially or totally submerged, the pressure on its bottom surface is more significant than on its upper surface or layer is called upthrust. This is also called buoyant force.
2. The buoyant force is an upward force acting on a body that is partial. or fully immersed in a liquid
3. Upthrust is denoted by $F_B$.
4. The S.I unit of upthrust is $\mathrm{Newton}\left(\mathrm{N}\right)$.