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For some odd reason, i'm having no problems with the rest of the exercises, though this one is really annoying as i just can't seem to get it right.

Here's a picture of the exercise

h t t p://img2.freeimagehosting.net/image.php?4bc2e12442.jpg

http://img2.freeimagehosting.net/image.php?4bc2e12442.jpg [Broken]

Could someone please give me a detailed description on how to solve it ?

I've used m=w/g to find the weight of the person (882.9 N )

But when i try to use sin and cos with the angle, i don't get the right result

Here's a picture of the exercise

h t t p://img2.freeimagehosting.net/image.php?4bc2e12442.jpg

http://img2.freeimagehosting.net/image.php?4bc2e12442.jpg [Broken]

Could someone please give me a detailed description on how to solve it ?

I've used m=w/g to find the weight of the person (882.9 N )

But when i try to use sin and cos with the angle, i don't get the right result

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