Principles of Physics 11th ISV Edition · Kinetic Energy and Work · Problem 22
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Walker, Halliday & Resnick — Kinetic Energy and Work: Problem 22
22 A cave rescue team lifts an injured spelunker directly upward and out of a sinkhole by means of a motor-driven cable. The lift is performed in three stages, each requiring a vertical distance of 12.0 m: (a) the initially stationary spelunker is accelerated to a speed of 5.00 m/s; (b) he is then lifted at the constant speed of 5.00 m/s; (c) finally he is decelerated to zero speed. How much work is done on the 85.0 kg rescuee by the force lifting him during each stage?
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주어진 조건: 22 A, 12.0 m, 5.00 m, 85.0 kg
구하는 것: (a) the initially stationary spelunker is accelerated to a speed; (b) he is then lifted at the constant speed of 5; (c) finally he is decelerated to zero speed
이 문제는 Kinetic Energy and Work 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.
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Principles of Physics · 11th ISV Edition
저자: Walker, Halliday & Resnick
출판사: Wiley
단원: Kinetic Energy and Work