Applying Newton's Laws of Motion

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emma3001
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Homework Statement



Blocks X and Y of masses mx=5.12kg and my=3.22kg are connected by a fishing line passing over a frictionless pulley. Show that block X slides up the incline (35.7 degrees above the horizontal) with positive acceleration. Determine the magnitude of the acceleration. (0.273m/s2 is the answer)


Homework Equations



Ftension-Fg=Fnet=m total x a system
sin35.7=Fty/Ftens
Cos35.7=Ftx/Ftens
Fg=mg (Block Y)

The Attempt at a Solution



I want to find the Ftx= and FAy but i do not know the Ftens. I can calculate the gravitational force of Block Y, which is F=mg=31.6N. now i am trying to figure out how to calculate the net force which will give me acceleration, using the combined mass of the two blocks. What is confusing me is the incline and the fact that no tension force is given.
 
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please help me understand the situation at least! thx