When a ship moves through water, the friction it experiences depends on how much of its hull is in the water and how fast it is traveling. Suppose the frictional resistance, R, of a ship is proportional to the area of the ship's hull that is wet, A, and the squar speed, V. (a) Express R in terms of A and V. Use k for your proportionality constant. R= (b) By what percent (%) does R change if V increases by 30% ? Give your answer rounded to the nearest 0.1%. Does this increase in V result in an increase or decrease for R? Xhyl Increase/Decrease

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