Fundamentals of Physics Extended 12th Edition · Potential Energy and Conservation of Energy · Problem 51_E
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Halliday, Resnick & Walker — Potential Energy and Conservation of Energy: Problem 51_E
During a rockslide, a 520 kg rock slides from rest down a hillside that is 500 m long and 300 m high. The coefficient of kinetic friction between the rock and the hill surface is 0.25. (a) If the gravitational potential energy \( U \) of the rock–Earth system is zero at the bottom of the hill, what is the value of \( U \) just before the slide? (b) How much energy is transferred to thermal energy during the slide? (c) What is the kinetic energy of the rock as it reaches the bottom of the hill? (d) What is its speed then?
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주어진 조건: , a, 520 kg, 500 m, 300 m
구하는 것: (a) If the gravitational potential energy \; (b) How much energy is transferred to thermal energy during the; (c) What is the kinetic energy of the rock as it reaches the bot
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Fundamentals of Physics Extended · 12th Edition
저자: Halliday, Resnick & Walker
출판사: Wiley
단원: Potential Energy and Conservation of Energy