math
posted by John on .
An object is moving along the parabola y = 3x^2. (a) When it passes through the point (2,12), its horizontal velocity is dx/dt = 3. what is its vertical velocity at that instant? (b) If it travels in such a way that dx/dt = 3 for all t, then what happens to dy/dt as t > +infinity? (c) If, however, it travels in such a way that dy/dt remains constant, then what happens to dy/dt as t > +infinity?

see your calculus post.