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Math Help - Need HELP

  1. #1
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    Need HELP

    i have been out of classes for two weeks because i had knee surgery. i have a test coming up in a couple of days. and i am stuck on one problem that i cant figure out to save my life. if you can show me how to solve it that would be awesome
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  2. #2
    Forum Admin topsquark's Avatar
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    Re: Need HELP

    Quote Originally Posted by TwelfthCoin View Post
    i have been out of classes for two weeks because i had knee surgery. i have a test coming up in a couple of days. and i am stuck on one problem that i cant figure out to save my life. if you can show me how to solve it that would be awesome
    If it is stationary then all the forces add up to 0 N. So set up the usual x,y coordinate system and break the forces down into components. You will have two equations, one from the x and one from the y. Let's hope that they work out to the same angle since the problem is overconstrained.

    -Dan
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  3. #3
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    Re: Need HELP

    How would I start that the last thing I leqrned was sine cosine tangent cotangent secant and cosecant.

    Ps thanks for the quick reply
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  4. #4
    Forum Admin topsquark's Avatar
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    Re: Need HELP

    Quote Originally Posted by TwelfthCoin View Post
    How would I start that the last thing I leqrned was sine cosine tangent cotangent secant and cosecant.

    Ps thanks for the quick reply
    Let's talk about the force at an angle. You have a 250 N force acting up and to the right. Sketch that force as a right triangle. You've got a leg to the right, a leg upward, and a hypotenuse up and to the right. What I mean by "components" is calculating the size of the legs. So the leg to the right has a magnitude of 250 * cos( angle ). What about the upward leg?

    -Dan
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