# Physics problem using Newton's laws how to solve?

1. Oct 31, 2012

### ax308

1. The problem statement, all variables and given/known data

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

2. Relevant equations

3. The attempt at a solution
https://dl.dropbox.com/u/83441690/Photo%20Oct%2031%2C%207%2053%2020%20PM.jpg

2. Oct 31, 2012

### frogjg2003

3. Oct 31, 2012

### ax308

sorry https://dl.dropbox.com/u/83441690/Photo%20Oct%2031%2C%209%2029%2050%20PM.jpg [Broken]

Last edited by a moderator: May 6, 2017
4. Oct 31, 2012

### frogjg2003

What do the top two lines say?