A rocket is launched vertically and is tracked by a radar station located on the ground 5 mi from the launch pad. Suppose that the elevation angle θ of the line of sight to the rocket is increasing at 3° per second when θ=60°. What is the velocity of the rocket at this instant?
The Attempt at a Solution
0=c(dc/dt) - y(dy/dt)
c2=square root of 34
Can I just plug in 3 for y, square root of 34 for c, and π/60 for dc/dt