1. The problem statement, all variables and given/known data A 20.0 kg block rests on a frictionless inclined plane of slope angle 30.0 degrees. A light cord attached to the block passes over a frictionlesss pulley at the top of the plane and is attached to a second block. What must be mass of the second block if the system is to be accelerating up and to the right at 2.00 m/s2? https://dist-ed.waketech.edu/course...63858134f05bd87414264516909/InclineAtwood.png Is a link to the image. I found in class that the answer is 17.7 kg.. however I am stumped on where the numbers should go. 2. Relevant equations 3. The attempt at a solution http://hyperphysics.phy-astr.gsu.edu/hbase/incpl.html#c1 is the link where I use my formulas Well I do know that if I isolate the mass on the incline ƩFnetx = -m1g * sin(30°) + Fτ = 2*20 I got 2*20 because of ma, and I know for m1g I substitute (20*9.8) I also know that acceleration is going up the incline, and if I were to remove the pulley and put them on the x-axis, it would be going to the right which is positive, therefore, the acceleration is positive. Solving for that I get, Fτ = 138N which I know to be true Now.. isolating m2 I get ƩFnetx = -Fτ + m2g = 2m however I have two masses?? In a previous problem when I had to find the mass of m2 if I wanted the objects to be at rest or constant velocity (so I assumed F=ma, but the sum would be 0). I ended up finding the weight of M2 being 98N.. would I plug that in for m2g? I guess not considering it doesn't give me the answer.. but I just wanted some feedback on this.