Answer:
s = [tex]\frac{3}{10}[/tex] m
Step-by-step explanation:
Given s varies directly with m then the equation relating them is
s = km ā k is the constant of variation
To find k use the condition s = 9 when m = 30 , thus
9 = 30k ( divide both sides by 30 )
k = [tex]\frac{9}{30}[/tex] = [tex]\frac{3}{10}[/tex]
s = [tex]\frac{3}{10}[/tex] m ā equation of variation
