Define pressure. Give its SI unit.
The total force applied per unit area is called pressure.
Mathematically,
Pressure (P) = Force (F) / Area (A)
Its SI unit is pascal (Pa).
What is the relation between the density and upthrust of a liquid?
The relation between the density and upthrust of a liquid is:
We have, upthrust = Vdg
So, upthrust ∝ d