- #1
uchicago2012
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Homework Statement
A 6 kg object sits on a horizontal surface with coefficient of friction = .8. What is the minimum force (not necessarily horizontal) necessary to make the object slide?
Homework Equations
Fsmax = u * Fn
where Fsmax is the force that must be overcome to make an object move, u is the coefficient of friction, and Fn is the normal force.
The Attempt at a Solution
I was just wondering if this seemed correct:
Fg = -58.8 N (mass * g) so
Fn = 58.8 N
I'm not clear on when exactly one can make the assumption that Fg = Fn
but then using that value of Fn I calculated Fsmax, so the minimum force necessary to make the block move is any force greater than Fsmax.