Fundamentals of Physics Extended 12th Edition · Force and Motion–II · Problem 75
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Halliday, Resnick & Walker — Force and Motion–II: Problem 75
A locomotive accelerates a 25-car train along a level track. Every car has a mass of \(5.0 \times 10^4 \text{ kg}\) and is subject to a frictional force \(f = 250v\), where the speed \(v\) is in meters per second and the force \(f\) is in newtons. At the instant when the speed of the train is \(30 \text{ km/h}\), the magnitude of its acceleration is \(0.20 \text{ m/s}^2\). (a) What is the tension in the coupling between the first car and the locomotive? (b) If this tension is equal to the maximum force the locomotive can exert on the train, what is the steepest grade up which the locomotive can pull the train at \(30 \text{ km/h}\)?
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주어진 조건: 250v
구하는 것: (a) What is the tension in the coupling between the first car an; (b) If this tension is equal to the maximum force the locomotive
이 문제는 Force and Motion–II 단원의 핵심 개념을 다룹니다. Fundamentals of Physics Extended 12th Edition의 체계적인 풀이 과정을 통해 단계별 분석과 공식 적용을 통해 정답을 도출합니다. 전체 풀이는 솔루션 패스로 확인하세요.
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Fundamentals of Physics Extended · 12th Edition
저자: Halliday, Resnick & Walker
출판사: Wiley
단원: Force and Motion–II