Physics problem using Newton's laws how to solve?

AI Thread Summary
The discussion revolves around solving a physics problem involving two masses on inclined planes connected by a cord. The masses are 3 kg and 5 kg, positioned on planes with angles of 30 and 40 degrees, respectively. Key questions include determining the net acceleration of the system, the tension in the string, and the weight required for the second mass to move at constant speed. Participants are seeking assistance with the calculations and have shared images of their attempts, requesting clarification on the solutions. The focus remains on applying Newton's laws to analyze the forces acting on the masses.
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Homework Statement



how do i solve it ? if someone can help I will appreciate it.

Two masses m1 = m2 = 3 Kg and 5 Kg lie on two inclined planes with negligible friction connected via a cord that is inextensible and massless. The planes have angles of 30 degrees for m1 and 40 degrees for m2.
a) The net acceleration of the system ?
b) The string tension?
c) How much should m2 weigh for the masses to move to the right with constant speed?

this is the image
https://dl.dropbox.com/u/83441690/prb1.png

Homework Equations





The Attempt at a Solution


https://dl.dropbox.com/u/83441690/Photo%20Oct%2031%2C%207%2053%2020%20PM.jpg
 
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I can't read the solution. Could you please type it out?
 
sorry https://dl.dropbox.com/u/83441690/Photo%20Oct%2031%2C%209%2029%2050%20PM.jpg
 
Last edited by a moderator:
What do the top two lines say?
 

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