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fighter2_40
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Homework Statement
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?
Homework Equations
mass (velocity)^2 / radius = Centripetal Force
mass x 9.8 [gravity] x U [friction constant] = Force of Friction
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.