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Did you sketch a picture ?

No, I don't know how to begin it.

|dw:1382104719667:dw|

why is it 2x^2 = 25^2 ?

If the pythagoraean theorem does not ring any bells, you should learn it.

I got the phythagorean theorem, thanks :) Can you still help with the next step on answering it?

now you have this picture
|dw:1382106175853:dw|

Is the downward force: 25^2/2 and 50 N?

25^2/2 means 25*25/2
do you mean \( 25 \sqrt{2}/2\) ?

No. What I mean is the 25 sqr(2)/2 and 50 N.

i'm confused with the 25 sqr(2)

yes

thanks :) how about the force horizontally?

look at the picture. How big is the vector that goes sideways ?

25 sqr(2)/2 ?

yes. or as a decimal about 67.678 N

yw