Question

You are holding up a light fixture of mass 1.4 kg with a force of 21 N against the ceiling. What is the normal force?

Answer 1

Given data

*The given mass of the fixture is m = 1.4 kg

*The given force is F = 21 N

The formula for the normal force is given as

$N=mg$

Substitute the known values in the above expression as

$\begin{gathered} N=(1.4)(9.8) \\ =13.72\text{ N} \end{gathered}$

Hence, the normal force is N = 13.72 N