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nexis

  • 3 years ago

Sigh..one more: Related rates, Problem in attachment.

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  1. nexis
    • 3 years ago
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  2. nexis
    • 3 years ago
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    Having trouble setting this up correctly.

  3. nexis
    • 3 years ago
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    Brb

  4. Algebraic!
    • 3 years ago
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    |dw:1352759337213:dw|

  5. Algebraic!
    • 3 years ago
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    1+x^2=r^2 differentiate with respect to time, solve for dx/dt and plug in the givens compare the value you get for dx/dt with the velocity of the plane to find the car's speed...

  6. nexis
    • 3 years ago
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    @Algebraic! thank you for this approach. I tried solving this problem the same way, but was stuck because i thought "r" was unknown. I'm guessing you would suggest solving for r with pythagoras but can we really just assume that height=1 here?

  7. Algebraic!
    • 3 years ago
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    yes and r= sqrt(1 +1.5^2)

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