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**1. The problem statement, all variables and given/known data**

There is a block on a turntable. It is attached to the center of the table by a string with the length .4m. Also the static friction constant between the table and the block is 0.8 .

If the maximum tension the string can support is 300n how fast can the table spin without the string snapping?

**2. Relevant equations**

mass (velocity)^2 / radius = Centripetal Force

mass x 9.8 [gravity] x U [friction constant] = Force of Friction

**3. The attempt at a solution**

mv^2/.4 = 300 + .8mg

V = sqr(120/m +3.136)

Where do I go from here? Can I find a quantitative value for velocity if the mass of the block is not given?

Thanks! I would appreciate it if I can get an answer tonight. My impression is that this is due tomorrow.