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blackboy
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Homework Statement
A 1.3kg toaster is not plugged in. The coefficient of static friction between the toaster and a horizontal countertop is 0.350. To make the toaster start moving, you carelessly pull on its electric cord. (a) For the cord tension to be as small as possible, you should pull at what angle above the horizontal? (b) With this angle, how large must the tension be?
Homework Equations
The Attempt at a Solution
Ok I know that there are two components to the tension, TCosθ and TSinθ. I got TSinθ<12.74 and TCosθ>4.459 so θ<70.7. We want TCosθ-4.459 to be as small as possible so
d(TCosθ-4.459)/dθ=0 and -TSinθ=0 so θ=0.
Somehow I don't think that is right. And for the second part are you giving T>x or a specified value for T? Thank you.