Fundamentals of Physics Extended 12th Edition · Potential Energy and Conservation of Energy · Problem 20_M
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Halliday, Resnick & Walker — Potential Energy and Conservation of Energy: Problem 20_M
A pendulum consists of a 2.0 kg stone swinging on a 4.0 m string of negligible mass. The stone has a speed of 8.0 m/s when it passes its lowest point. (a) What is the speed when the string is at 60° to the vertical? (b) What is the greatest angle with the vertical that the string will reach during the stone’s motion? (c) If the potential energy of the pendulum–Earth system is taken to be zero at the stone’s lowest point, what is the total mechanical energy of the system?
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주어진 조건: 2.0 kg, 4.0 m, 8.0 m
구하는 것: (a) What is the speed when the string is at 60° to the vertical?; (b) What is the greatest angle with the vertical that the string; (c) If the potential energy of the pendulum–Earth system is take
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Fundamentals of Physics Extended · 12th Edition
저자: Halliday, Resnick & Walker
출판사: Wiley
단원: Potential Energy and Conservation of Energy