Recent content by Alex13

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    Solving Simultaneous Equations: 3x + y = 17 and 4x - 2y = 6

    The other method you can use is elimination, meaning adding or subtracting the equations. multiply one of the equations (sometimes it isn't necessary) 7a - 3b = 17 3(2a + b = 16) if you multiply this equation by 3, you will have "3b" in both equations. now you can subtract...
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    What Angle Should the Rifle Be Aimed to Hit a Target 800m Away?

    Figured it out... I appreciate the help! Thanks Alex
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    What Angle Should the Rifle Be Aimed to Hit a Target 800m Away?

    Thanks for the reply denverdoc. would you be able to clarify a few things? 1.74s cannot be used for the time, since the bullet is being fired at an angle, right? Also I'm not familiar with small angle approximations, so maybe the first method is not the best way to go about. I understood...
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    What Angle Should the Rifle Be Aimed to Hit a Target 800m Away?

    Homework Statement A rifle, in which the initial velocity of the bullet is 460m/s, is aimed at a small target 800 metres away at the same height as the rifle. At what angle above the ground must the rifle be pointed so that it hits the target? ** x = horizontal distance t = time Vx =...
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