Question

if $g = 0$, what is $sqrt{-18g}$?

Explanation:

Step1: Substitute $g=0$ into the expression

$\sqrt{-18g} = \sqrt{-18 \times 0}$

Step2: Calculate the product inside the root

$\sqrt{-18 \times 0} = \sqrt{0}$

Step3: Evaluate the square root of 0

$\sqrt{0} = 0$

Answer:

$0$