- #1
kaylanp01
- 26
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Homework Statement
Block A has a mass of 5.56 kg and is on a rough incline of 21.5 degrees to the horizontal. Block B has a mass of 4.66 kg and the coefficient of kinetic friction between Block A and the plane is 0.276. What is the acceleration of the blocks?
Homework Equations
I used a = m2g - m1gsin(theta) / (m1+m2)
I see why that's wrong though, because I didn't use the kinetic friction.
The Attempt at a Solution
Again, I used the eq above to get
a = (4.66)(9.81) - (5.56)(9.81)sin(21.5) / (5.56+4.66) = 2.52 m/s^2
But I see why that's incorrect, I just don't know the correct method. haha.
Thanks! :)