Physics Honors

How long will it take a shell fired from a cliff at an initial velocity of 800 m/s at an angle 30 degrees above the horizontal to reach the ground 150 meters below?

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  1. The equation you have to solve is

    80 sin 30 t - (g/2) t^2 = -150

    which can be rewritten

    40 t - 4.9 t^2 = -150

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  2. 0.37

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