Recent content by deathcabislov

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    Derivative of Trigonometric Function: y=5sin(0.5x+2)+6

    So... y'=5cos(0.5x+2)*0.5 ?
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    Derivative of Trigonometric Function: y=5sin(0.5x+2)+6

    Homework Statement Find the derivative of y=5sin(0.5x+2)+6 Homework Equations My initial assumptions would be to use the chain rule. The Attempt at a Solution y=5sin(0.5x+2)+6 The chain rule is to take the derivative of the outer function and multiply by the derivative of the...
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    Finding Vector with Known Vector and Resultant Vector

    Thank you SO MUCH!
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    Finding Vector with Known Vector and Resultant Vector

    Ohhhhhhkay. And once I find those, I can find the magnitude of a. And then can I just use one of the component formulas to find the direction of a?
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    Finding Vector with Known Vector and Resultant Vector

    Haha. No. It's 6.92820323 N. But for this question, all I need to use is 7 N. Well, I tried to use the Pythagorean Theorem, because the square of the resultant equals the square of the sum of the x-components plus the square of the sum of the y-components. So: (15 N)2=(ax+4N)2+(ay+7N)2
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    Finding Vector with Known Vector and Resultant Vector

    Thank you! :) Yes, that is what I meant. Here is a very messy depiction of what I have: I know this is an easy problem but I'm so confused!
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    Finding Vector with Known Vector and Resultant Vector

    Homework Statement There are two forces. One has a magnitude of 8 N and acts at an angle of 30 degrees on the resultant vector. The resultant vector is 15 N. Homework Equations equations for components (|a|cosx for horizontal and |a|sinx for vertical) cos law and sin law basic trig...