An object with a mass of # 9 kg# is lying still on a surface and is compressing a horizontal spring by #2/3 m#. If the spring's constant is # 8 (kg)/s^2#, what is the minimum value of the surface's coefficient of static friction?

1 Answer
Gió
Feb 24, 2016

I found #0.06# (but check my maths!)

Explanation:

Have a look:
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