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Math Help - rocket launch

  1. #1
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    rocket launch

    When watching a rocket launch, Nema is 0.8Km closer to the launching pad than Joel is. When the rocket disappears from view, its angle of elevation for Nema is 36.5* and for Joel is 31.9*. How high is the rocket at this point?
    thank you in advance for any help
    with a diagram will be more appreciated~~~`
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  2. #2
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by ives View Post
    When watching a rocket launch, Nema is 0.8Km closer to the launching pad than Joel is. When the rocket disappears from view, its angle of elevation for Nema is 36.5* and for Joel is 31.9*. How high is the rocket at this point?
    thank you in advance for any help
    with a diagram will be more appreciated~~~`
    how about you draw the diagram and think about it.

    call the distance between Nema and Joel x, and call the height of the rocket at the said point, y.

    now think trig ratios, in particular, trig ratios that relates x and y.

    what can you come up with?
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  3. #3
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    thanks....
    i just want to check if the answer in the back is correct.
    and finnally, teacher confirmed it.
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