- #1
amb1989
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Homework Statement
A block of mass 3.7 kg on a frictionless plane inclined at an angle of 30 degrees is connected by a cord over a massless, frictionless pulley to a second block of mass 2.3 kg. What are the acceleration of the blocks? The direction of acceleration of the hanging block and the tension of the cord.
Homework Equations
Mg-T = Ma
T-mg sinx = ma
The Attempt at a Solution
I drew my free body diagram and identified the force that was going to pull the block down the inclined plane. Because the mass of the block on the plane is greater than that suspended over the plane I figured that the acceleration of the hanging block is upward.
Using the two relevant equations I came up with g[(msinx-M)/(M+M)] = a
I feel like this should be right and for an answer I keep coming up with 0.801. The correct answer is 0.735 Help please :)