Question

Select the units of upthrust from the following:

• A. $\text{N}$
• B. ${\text{m s}}^{-2}$
• C. $\text{kgf}$
• D. $\text{Pa}$

Answer 1

Answer: (A), (C)

The correct options are
A $\text{N}$
C $\text{kgf}$

Upthrust is a kind of force. So, the unit of upthrust is same as that of the force, newton ($\text{N}$) or $\text{kgf}$ i.e. kilogram-force. Kilogram-force is also a metric unit of force.
$\text{Pa}$ and ${\text{m s}}^{-2}$ are units of pressure and acceleration respectively.