A seagull, flying above a lake, dives for a fish according to the function h(t)=0.25t^3 -4t^2 +15t, where h(t) represents the

Question

A seagull, flying above a lake, dives for a fish according to the function h(t)=0.25t^3 -4t^2 +15t, where h(t) represents the height above the water, in feet, at t seconds.

(A) Determine the velocity of the seagull when it exits the water.

(B) Determine the acceleration of the seagull at 9 seconds.

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