# An object with a mass of #8 kg# is lying still on a surface and is compressing a horizontal spring by #5/6 m#. If the spring's constant is #9 (kg)/s^2#, what is the minimum value of the surface's coefficient of static friction?

##### 1 Answer

Aug 28, 2017

#### Answer:

0,0956

#### Explanation:

To don't move the assemblage, the friction force must be greater than spring one.

Force of the spring=

from friction force =