- #1
savva
- 39
- 0
Homework Statement
How massive an object can be supported by a 5.6 -diameter suction cup mounted on a vertical wall, if the coefficient of friction between cup and wall is 0.65? Assume normal atmospheric pressure.
Homework Equations
-
The Attempt at a Solution
I calculated the maximum force which I realized was when the pressure inside the suction =0
Therefore Fmax=pA=101.3*10^3(pi(0.028^2))= 250N.
I don't know how to find the how much mass can be supported by the suction cup. I tried a number of answers and they were all wrong.