Answered

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Linda goes water-skiing one sunny afternoon. After skiing for 15 min, she signals to the driver of the boat to take her back to the dock. The driver steers the boat toward the dock, turning in a parabolic path as it nears. If linda lets go of the tow-rope at the right moment she will glide to a stop near the dock. Let the vertex of the parabola travelled by the boat be the origin. The dock is located 30 m east and 30 m north of the origin. The boat begins its approach to the dock 30 m west and 60 m north of the origin.

a) If Linda lets go of the tow-rope when she reaches point A, where is she headed relative to the dock? Use an equation to desctibe path. ( Hint: she will travel in a straight line.)
b) if linda lets go of the tow-rope whe she reached point B, where is Linda headed relative to the dock?
c) If linda waits until point O, how close will her traectory be to the dock.

Sagot :


The answer is c letting go of the towrope would make her fall or trip in the water, not to mention it would be very dangerous
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