# If the length of a #26 cm# spring increases to #46 cm# when a #8 kg# weight is hanging from it, what is the spring's constant?

##### 1 Answer

#### Answer:

#### Explanation:

the spring constant is the direct proportion between:

the force applied on the string

and the extension of the string when the force is applied on it.

they have the relationship

where

and

here, the force is that applied on the

where

and

on Earth,

the force applied is

which is

the extension is from