Here's the question you clicked on:
nexis
Sigh..one more: Related rates, Problem in attachment.
Having trouble setting this up correctly.
|dw:1352759337213:dw|
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...
@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?
yes and r= sqrt(1 +1.5^2)