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OpenStudy (anonymous):
A block is sliding down a inclined plane that has the angle 30° and the coefficient of sliding friction is 0,2 what is the acceleration of the block?
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OpenStudy (anonymous):
this one is a little bit more complicated than your previous problem do you understand what the coefficient of friction tells you ?
OpenStudy (anonymous):
no not exactly
OpenStudy (anonymous):
well that is essential to solve this problem
OpenStudy (anonymous):
ok what i've got is: fk = N*muk = 9,8cos30 * 0,2 = 1,54 .. but i cant use a=F/m because i dont have the mass.
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