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Homework Statement
Block B with a mass of (.75kg) is on an inclined plane attatched by a pulley to Block A which has a mass of (1.5kg). The angle given is 40 degrees. The coefficient of friction of Block B on the ramp is .29. What is the acceleration?
Homework Equations
Fnet=m*a
f=Fnormal*Coefficient of f
The Attempt at a Solution
My solution was Fnet = m*a
Fnet = Fapplied - f
Fapplied = the weight of Block A (m*g) = 14.7N
f = fx of Block B which equals sin(40)*7.36 = 2.25
Fnet = 12.5
therefore a=Fnet / m
m = mass of the system which is 1.5 +.75 = 2.25kg
a = 12.5 / 2.25
a= 5.56m/s/s
I don't think that this is correct. Our Physics teacher has showed us inclined plane problems with a = 0 and without Atwood's machine. He has also showed us an Atwood's Machine problem without an angle. So now I am stuck and I don't know how to accuratley solve this problem. Thanks for the help.
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