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15. A cruise ship with a mass of 1.00x10^7 kg strikes a pier at a speed of 0.750 m/s. It
comes to rest 6.00 meters later, damaging the ship, the pier, and the tugboat captain's
finances. Calculate the average force exerted on the pier using the concept of impulse.
(Hint: First calculate the time it took to bring the ship to rest.) (t=16.0 s, F=4.69x105 N)

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