Fundamentals of Physics Extended 12th Edition · Potential Energy and Conservation of Energy · Problem 89
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Halliday, Resnick & Walker — Potential Energy and Conservation of Energy: Problem 89
A 2.50 kg beverage can is thrown directly downward from a height of 4.00 m, with an initial speed of 3.00 m/s. The air drag on the can is negligible. What is the kinetic energy of the can (a) as it reaches the ground at the end of its fall and (b) when it is halfway to the ground? What are (c) the kinetic energy of the can and (d) the gravitational potential energy of the can–Earth system 0.200 s before the can reaches the ground? For the latter, take the reference point \( y = 0 \) to be at the ground.
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주어진 조건: 2.50 kg, 4.00 m, 3.00 m
구하는 것: (a) as it reaches the ground at the end of its fall and; (b) when it is halfway to the ground? What are; (c) the kinetic energy of the can and
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Fundamentals of Physics Extended · 12th Edition
저자: Halliday, Resnick & Walker
출판사: Wiley
단원: Potential Energy and Conservation of Energy