Physics, cannon ball?

A cannon ball is fired horizontally at 200 m/s off a cliff 200 m high. Give the angle, below the horizontal, at which it will enter the sea below.

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  • 9 years ago
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    The horizontal velocity is constant at 200 m/s

    The vertical velocity will become

    v² = u² + 2as = 0 + 2 * 9.8m/s² * 200m = 3920 m²/s²

    v = 62.6 m/s

    Θ = arctan(62.6/200) = 17.4º

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