Answer:
normal force = 10 N
Explanation:
Given data
frictional force = 0.400 N
coefficient of kinetic friction = 0.04
Solution
we get here normal force that is express as
normal force = [tex]\frac{Frictional\ force}{coefficient\ of\ friction}[/tex] Â Â Â Â ............1
put here value and we will get value
normal force = [tex]\frac{0.400}{0.04}[/tex] Â
solve it we get
normal force = 10 N