Principles of Physics 11th ISV Edition · Potential Energy and Conservation of Energy · Problem 45
✅ 단계별 검증 풀이
🎓 공학 전공자 검토
📐 수식 LaTeX 지원
Walker, Halliday & Resnick — Potential Energy and Conservation of Energy: Problem 45
45 A loaded truck of mass 3000 kg moves on a level road at a constant speed of 6.000 m/s. The frictional force on the truck from the road is 1000 N. Assume that air drag is negligible. (a) How much work is done by the truck engine in 10.00 min? (b) After 10.00 min, the truck enters a hilly region whose inclination is 30° and continues to move with the same speed for another 10.00 min. What is the total work done by the engine during that period against the gravitational force and the frictional force? (c) What is the total work done by the engine in the full 20 min?
📝 풀이 접근법
주어진 조건: 45 A, 3000 kg, 6.000 m, 1000 N
구하는 것: (a) How much work is done by the truck engine in 10; (b) After 10; (c) What is the total work done by the engine in the full 20 min
이 문제는 Potential Energy and Conservation of Energy 단원의 핵심 개념을 다룹니다. Principles of Physics 11th ISV Edition의 체계적인 풀이 과정을 통해 단계별 분석과 공식 적용을 통해 정답을 도출합니다. 전체 풀이는 솔루션 패스로 확인하세요.
📖 풀이 보기
단계별 상세 풀이는 솔루션 패스가 필요합니다
풀이 보러가기 →
💡 각 챕터 순서 기준 10번째 문제까지 무료 열람 가능
📘 교재 정보
Principles of Physics · 11th ISV Edition
저자: Walker, Halliday & Resnick
출판사: Wiley
단원: Potential Energy and Conservation of Energy