A helicopter is flying along a path given by y = 120 - .015x^2, such that Vx = 16 m/s.
Find Y at x-54m which I found at 76.26 m.
Then it says find Vy at x=54m.
I did the derivative dy/dt = -.03x where X is 54, and I get an answer of -1.62, but the answer is suppose to be Vy = -25.92.
What am I doing wrong here??