Posted by **John** on Sunday, October 18, 2009 at 12:23pm.

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?

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**bobpursley**, Sunday, October 18, 2009 at 12:43pm
see your calculus post.

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