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Physics Mechanics- friction

Shah 72

Member
Apr 14, 2021
193
In a factory, a machine picks up a box by clamping it on both sides. The box of mass 4kg is held clamped on both sides by identical clamps with the contacts horizontal. The machine provides a contact force of 50N with each clamp. Find the minimum coefficient of friction between each clamp and the box for the box not to slip.
 

skeeter

Well-known member
MHB Math Helper
Mar 1, 2012
935
have you sketched a free body diagram?

In the vertical direction ...

\[ \sum f_{s \, max} = mg \]
 

Shah 72

Member
Apr 14, 2021
193
have you sketched a free body diagram?

In the vertical direction ...

\[ \sum f_{s \, max} = mg \]
Yeah I did that. 40=coefficient of friction ×(50+50).
Coefficient of friction =0.4
 

Shah 72

Member
Apr 14, 2021
193