How Do You Calculate the Acceleration of Two Connected Blocks?

[username*]

I'm having trouble solving this problem, someone want to help me out?

Two blocks are connected by a cord as shown:
Find the acceleration of the blocks.

http://img177.imageshack.us/img177/2554/physicshc9.jpg

I have the answer, but I don't know how to get to it.

the answer is 7.56

 

[ank_gl]

can you show the free body diagram that you made?

 

[username*]

can you see the picture that i linked?

 

[username*]

http://img264.imageshack.us/img264/5738/physicsww5.jpg

here is what i added

 

[ank_gl]

your free body diagram seems alright..
now apply the equation net force = mass * acc on both the bodies

 

[ank_gl]

ok here is the fbd. try solving the equations now. solve for "a" eliminating T.
one more thing, sorry for the pathetic condition of my drawing skills.
cheers