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1 vote
The length of a spring varies directly with the mass of an object that is aftached to it. When a 30-gram object is attached, the

spring stretches 9 centimeters. Which equation relates the mass of the object, m, and the length of the spring, s?
vx
3
S =
10
3
3
M =
S
10
m =
1
30
S​

User Sean E
by
6.9k points

1 Answer

5 votes

Answer:

s =
(3)/(10) m

Explanation:

Given s varies directly with m then the equation relating them is

s = km ← 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 =
(9)/(30) =
(3)/(10)

s =
(3)/(10) m ← equation of variation

User Nomi
by
7.5k points