Work problem. Please see attached. I'm having trouble with part (b)

Question

Work problem.  Please see attached.  I'm having trouble with part (b)

anonymous · Answer

attachment

anonymous · Answer

I struggled with this type of problem when I was in physics last quarter :-(

anonymous · Answer

did you find the acceleration... since they're roped together you assume that the acceleration of each is the same

anonymous · Answer

if ou have acceleration you'll have two unknowns that can be related to each other

anonymous · Answer

Yes, I tried finding it.  I got a=4.70 m/s^2

anonymous · Answer

So for A, I did sum of the forces in x (x-axis being parallel to the inclined plane) and then for B, I did sum of the forces in y.  I made sure to make the direction of motion positive.  For A, there's a +T in the equation and B, there's a -T in the equation.  So I added both equations so that T would cancel out and I could solve for a.

anonymous · Answer

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anonymous · Answer

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