Newtons laws with friction

  • Thread starter martyk
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Homework Statement



In figure 6-36, two blocks are connected over a pulley. The mass of block A is mA and the coeffcient of kinetic friction between A and the incline is Uk. Angle of the incline is theta. Block A slides down the incline at constant speed. What is the mass of block B? Express your answer in terms of the variables given.

http://img121.imageshack.us/img121/9748/fig636.gif [Broken]

Homework Equations



F = ma

The Attempt at a Solution



Taking acceleration to be 0, because speed is constant. And that T1 = T2, i came to the answer of

[m1gsin(theta) - m1gcos(theta)Uk] / g = mass of the 2nd block

Can I get a verification
 
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Answers and Replies

  • #2
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Yes, that is correct.
 

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