Recent content by emmettecox

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    Hard Projectile Motion Question

    What I am trying to find is the equation for the angle of reach for a projectile fired from an elevated position. If you fire a projectile at an angle q from the same height as your target and you know the distance, x to your target and the initial velocity v you get q = 0.5[arcsin(gx/v^2)...
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    Hard Projectile Motion Question

    Homework Statement A cannon is firing from an elevated position 100 m above a target 800 m away. The ititial velocity of the cannon is 500 m/s. Homework Equations Vx = VCOSq Vy = VSINq a = (Vf - Vi)/(t) Vf = Vi + a t s = 0.5 (Vo +Vf)t Vf2 = Vo2 + 2aS S = Vit + 0.5at2...
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    Undergrad What is the Maximum Range of a Three-Man Water Balloon Launcher?

    water balloon launcher I am trying to work out the same thing with the goal of letting my students practice a little water balloon artillery. Try launching the balloon straight up. Calculate the total time of flight. take half the time and multiply that by 9.8 m/s/s that should be the speed...