What is wrong with my solution?

[promise89]

Homework Statement

http://img850.imageshack.us/img850/5325/odev1.png

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[tiny-tim]

welcome to pf!

hi promise89! welcome to pf!

it would be easier to tell if you typed out your answer properly ,

but if it means what i think it means, then it's correct ​

 

[gomunkul51]

** may be you need to write also the direction of the force i.e. -j

 

[promise89]

hi promise89! welcome to pf!

it would be easier to tell if you typed out your answer properly ,

but if it means what i think it means, then it's correct ​

Thanks for welcome message.

How ı write this properly? Shouldn't I use paint? Thanks...

 

[promise89]

** may be you need to write also the direction of the force i.e. -j

Thanks for hint, it is helpfull.

 

[tiny-tim]

How ı write this properly? Shouldn't I use paint? Thanks...

paint's ok, but some accompanying words would help!

 

[promise89]

paint's ok, but some accompanying words would help!

Ok , I will be careful on this.