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titusrevised
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Homework Statement
A balloon rises at the rate of 8 ft/s from a point on the ground 60 feet from an observer. Find the rate of change of the angle of elevation when the balloon is 25 feet above the ground.
Homework Equations
n/a
The Attempt at a Solution
i tried several times and erased...
but...
I tried d/dt 'ing tanX = h/60 and solving for dx/dt but that gave me a number way off from the answer.
I get (secX)^2 * dx/dt = 8/60 (because dh/dt = 8)
The answer is supposed to be about .114 radians/second.
EDIT: I solved it myself, finally...
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