Question

The gravitational SI unit of weight is

• A. $\mathrm{kg}wt$
• B. $\mathrm{N}$
• C. $g\mathrm{wt}$
• D. all the above

Answer 1

The correct option is A

$\mathrm{kg}wt$

1. We know that weight W = m × g
2. If mass

$$\begin{gathered} m=1kg \\ g=9.8m/s^2 \\ W=1kg\times 9.8m/s^2 \\ 1kgwt=9.8N \end{gathered}$$

3. So the gravitational force of the earth that acts on an object of mass of 1 kg is called 1 kg wt. It is the gravitational SI unit of weight.

Hence, option A is correct.