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ImpulseLeaq
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Homework Statement
Mass 1 (2.0kg) sits on top of mass 2(5.0kg), which rests on a frictionless surface. The coefficient of static friction between mass 1 and mass 2 is 0.30. A string of length 5.0m is tied to mass 2, and both masses are swung around in a horizontal circle. Calculate:
a) The maximum speed of the masses
b) The tension in the string
Homework Equations
Fc= mv^2/r
The Attempt at a Solution
I assumed that since there is no vertical motion, the Fc would be the tension in the string. So, i added both masses to make a system diagram of one block with both masses. Then, when I tried to solve for the maximum speed, I was stuck with 2 unknowns, Fc, and Ftension. I think we should make two equations and subsitute into the other and solve for one variable, but I am not sure.
Can someone please help me, and work through this problem with me?