How Do You Solve a Modified Atwood Machine Problem?

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To solve a modified Atwood machine problem involving masses m2 and m3, first determine the normal force and friction for each block. Next, modify the Atwood's equation to account for the incline and calculate the acceleration. Use kinematics equations to find the time it takes for each mass to reach the ground. Finally, subtract the time taken by m2 from that of m3 to find the time difference. This approach will also help in determining the landing spots of the two masses.
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Homework Statement


What the time difference between the instance that m2 and m3 hit the floor?
How far are their landing spots?

The Attempt at a Solution


So far I have figured out the normal force of the two blocks each, and then I found the friction of them both.Here is my work so far and the question. I have no clue on what to do next.

http://imgur.com/YRnxb
 
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It's an Atwood's machine, so you should be able to modify the Atwood's equation for acceleration to fit the specifications for an incline, and then solve for acceleration. From there, I'm assuming you would use kinematics equations to solve for the time it takes for each block to travel the distance to the ground, and then subtract the time for mass 2 from mass 3 to solve for the time difference.
 
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Kindly see the attached pdf. My attempt to solve it, is in it. I'm wondering if my solution is right. My idea is this: At any point of time, the ball may be assumed to be at an incline which is at an angle of θ(kindly see both the pics in the pdf file). The value of θ will continuously change and so will the value of friction. I'm not able to figure out, why my solution is wrong, if it is wrong .
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