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Fundamentals of Physics Extended 12th Edition · Potential Energy and Conservation of Energy · Problem 79_SSM
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Halliday, Resnick & Walker — Potential Energy and Conservation of Energy: Problem 79_SSM

A 1500 kg car begins sliding down a 5.0° inclined road with a speed of 30 km/h. The engine is turned off, and the only forces acting on the car are a net frictional force from the road and the gravitational force. After the car has traveled 50 m along the road, its speed is 40 km/h. (a) How much is the mechanical energy of the car reduced because of the net frictional force? (b) What is the magnitude of that net frictional force?

📝 풀이 접근법

주어진 조건: 1500 kg, 30 km, 50 m, 40 km

구하는 것: (a) How much is the mechanical energy of the car reduced because; (b) What is the magnitude of that net frictional force?

이 문제는 Potential Energy and Conservation of Energy 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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📘 교재 정보

Fundamentals of Physics Extended · 12th Edition
저자: Halliday, Resnick & Walker
출판사: Wiley
단원: Potential Energy and Conservation of Energy