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College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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A static object at an altitude of 30 m from the surface of the ground has a potential energy of 1470 J as shown in Fig. (3). If the body falls down, neglecting the air resistance, calculate: 1) The kinetic energy of the body and its potential energy at a height 20 m from the ground surface. 2) The velocity of the body at the moment of collision with the ground. KE = ? PE = ? h = 30 m h= 20 m v = ? Ground surface Fig. 3
Transcribed Image Text:A static object at an altitude of 30 m from the surface of the ground has a potential energy of 1470 J as shown in Fig. (3). If the body falls down, neglecting the air resistance, calculate: 1) The kinetic energy of the body and its potential energy at a height 20 m from the ground surface. 2) The velocity of the body at the moment of collision with the ground. KE = ? PE = ? h = 30 m h= 20 m v = ? Ground surface Fig. 3
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