- #1
nrp88
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Homework Statement
The cup shown in the picture is filled with 6 oz of coffee. The center of gravity is located at G. If a vertical force is applied to the rim of the cup a shown in the picture, determine its magnitude so that the cup is on the verge of tipping.
Homework Equations
sum of moments = 0
sum of forces = 0
w=mg
The Attempt at a Solution
I summed the moments around point A and came up with the force = - .5 lbs.
not sure if that's right, Do I need to factor in a normal force?
Thanks!