Physics for Scientists and Engineers: A Strategic Approach 5th Edition · Interactions and Potential Energy · Problem 43
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Randall D. Knight — Interactions and Potential Energy: Problem 43
You have been hired to design a spring-launched roller coaster that will carry two passengers per car. The car goes up a 10-m-high hill, then descends 15 m to the track’s lowest point. You’ve determined that the spring can be compressed a maximum of 2.0 m and that a loaded car will have a maximum mass of 400 kg. For safety reasons, the spring constant should be 10% larger than the minimum needed for the car to just make it over the top. a. What spring constant should you specify? b. What is the maximum speed of a 350 kg car if the spring is compressed the full amount?
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주어진 조건: 15 m, 2.0 m, 400 kg, . a, 350 kg
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Physics for Scientists and Engineers: A Strategic Approach · 5th Edition
저자: Randall D. Knight
출판사: Pearson
단원: Interactions and Potential Energy