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Math Help - require help on projectiles and trigonometry question

  1. #1
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    require help on projectiles and trigonometry question

    Hi all, I'd be extremely grateful if anyone could point me in the right direction on this question as I've been looking at it for half an hour now and nothing seems to be working. Thanks in advance!

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  2. #2
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    Re: require help on projectiles and trigonometry question

    \Delta y = v_0\sin{\theta} \cdot t - \frac{g}{2} t^2

    t = \frac{\Delta x}{v_0 \cos{\theta}}

    sub for t ...

    \Delta y = \Delta x \tan{\theta} - \frac{g}{2} \cdot \frac{(\Delta x)^2 \sec^2{\theta}}{v_0^2} > h

    where h is the height of the crossbar.
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  3. #3
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    Re: require help on projectiles and trigonometry question

    Thank you very much
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