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1. Knight P10.7 What height does a frictionless playground slide need so that a 35 kg child reaches the bottom at a speed of 4.5 m/s?

1. Knight P10.7 What height does a frictionless playground slide need so that a 35 kg child reaches the bottom at a speed of 4.5 m/s?

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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Questions In every problem you can assume conservation of total mechanical energy. 1. Knight P10.7 What height does a frictionless playground slide need so that a 35 kg child reaches the bottom at a speed of 4.5 m/s? 2. Knight P10.26 In the potential energy graph does 100 particle
Transcribed Image Text:Questions In every problem you can assume conservation of total mechanical energy. 1. Knight P10.7 What height does a frictionless playground slide need so that a 35 kg child reaches the bottom at a speed of 4.5 m/s? 2. Knight P10.26 In the potential energy graph does 100 particle
Useful information gravitational acceleration g = 9.8 m/s² General energy theorem Ko + Uo+Wext = Kƒ + Uƒ + AEth Isolated and dissipationless system Kinetic energy Spring relations Gravity relations Ko + Uo= Kf + Ug KE: = -mv² Fsp=-kAx 1 Usp = k(Aa)² Fg = -mg Ug = mgAy
Transcribed Image Text:Useful information gravitational acceleration g = 9.8 m/s² General energy theorem Ko + Uo+Wext = Kƒ + Uƒ + AEth Isolated and dissipationless system Kinetic energy Spring relations Gravity relations Ko + Uo= Kf + Ug KE: = -mv² Fsp=-kAx 1 Usp = k(Aa)² Fg = -mg Ug = mgAy
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