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A boat is cruising in a straight line at a constant speed of 2.6 m/s when it is shifted into neutral. After coasting 12 m the engine is engaged again, and the boat resumes cruising at the reduced constant speed of 1.6 m/s. Assuming constant acceleration while coasting,
(a) How much time did it take for the boat to coast the 12 m?
(b) What was the boat s acceleration while it was coasting?
(c) What was the speed of the boat when it had coasted for 6.0 m? Explain. |
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