Energy, work, 2 masses on incline

In summary, the problem involves two blocks with masses m1=4.0kg and m2=5.0kg connected by a light rope, sliding down a frictionless wedge. The angle of the side on which m2 is moving is 53 degrees, and the angle of the side on which m1 is moving is 37 degrees. The system starts from rest and the question asks for the speed of m2 after it has moved 40.0cm along the incline. Using the equations Ek=1/2mv^2 and Eg=mgh, it can be determined that the kinetic energy of m1 will decrease and be converted to potential energy, while the kinetic energy of m2 will increase. The law of conservation
  • #36
right, since m2 is going down and m1 is going up. It makes perfect sense. Well thank you so much for the help:) and for ur time, it took a while (what a tedious question -_-.. maybe because I am reali slow at physics). By the way, how would I mark that the question has been solved?
 
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  • #37
FurFur said:
right, since m2 is going down and m1 is going up. It makes perfect sense. Well thank you so much for the help:) and for ur time, it took a while (what a tedious question -_-.. maybe because I am reali slow at physics). By the way, how would I mark that the question has been solved?

Sure, glad to help! And the more you practice on these problems, the faster you'll go. It's easy to write down the equations, but it can sometimes be difficult to understand how to apply them until you have enough experience.

I don't think you can mark threads solved right now; that function went away recently after an upgrade, but I think it is planned on being fixed.
 
  • #38
oh okay. Yea I'm going to keep practicing since practice makes perfect.
 
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