Calculating Tension in a String: Two Masses on a Horizontal Surface

[Michael89]

Homework Statement

Two blocks of masses 2kg (a) and 3kg (b) rest on a smooth horizontal surface and are connected by a taut string of negligible mass. A force of 10 N is applied to the 3kg mass as shown in figure (below). Calculate the tension in the string between them.

The answer is 4N

http://www.noosahill09.com/images/upload1.jpg

Homework Equations

Friction has not been discussed yet, it is in the next chapter.

The Attempt at a Solution

I can figure out how to calculate the tension on a string of a pulley or the tension of a string with a hanging object attached... but because there is no gravity to work out I don't know how to calculate this?

Any help is appreciated!

 

[ideasrule]

Write out Newton's second law for both masses.

 

[tms]

You should also reexamine the part of your subject line that says that there is no acceleration.