Question 17The 3-kg disk Dis attached to the end of a cord. The other end is attached toball and socket joint located at the center of platform. If the platform isrotating rapidly, and the disk is placed on it and released from rest,determine the time it takes for the disk to reach a speed great enough tobreak the cord. The max tension the cord can sustain is 100 N, and thecoefficient of kinetic friction between disk and platform is Pk= 0.1-- Motion of platfomQuestion 18Design of the ski requires knowing the type of forces that will be exerted onthe skier and his approximate trajectory. In the case as shown, determinethe normal force and acceleration on the 600-N skier the instant he arrivesat the end of jump, A, where his velocity is 9 m/s.15 mQuestion 19Packages, each of mass 2-kg, are delivered from a conveyor to a smoothcircular ramp with a velocity of vo= 1 m/s. If the effective radius of the rampis 0.5 m, determine the angle 0= Omax at which each package begins to leavethe surface.ds = 0.5 dar-0.5 m

Question 17 The 3-kg disk Dis attached to the end of a cord. The other end is attached to ball and socket joint located at the center of platform. If the platform is rotating rapidly, and the disk is placed on it and released from rest, determine the time it takes for the disk to reach a speed great enough to break the cord. The max tension the cord can sustain is 100 N, and the coefficient of kinetic friction between disk and platform is pk= 0.1 D Motion of platfom

Question 17 The 3-kg disk Dis attached to the end of a cord. The other end is attached to ball and socket joint located at the center of platform. If the platform is rotating rapidly, and the disk is placed on it and released from rest, determine the time it takes for the disk to reach a speed great enough to break the cord. The max tension the cord can sustain is 100 N, and the coefficient of kinetic friction between disk and platform is pk= 0.1 D Motion of platfom

International Edition---engineering Mechanics: Statics, 4th Edition

4th Edition

ISBN:9781305501607

Author:Andrew Pytel And Jaan Kiusalaas

Publisher:Andrew Pytel And Jaan Kiusalaas

Chapter7: Dry Friction

Section: Chapter Questions

Problem 7.79P: The coefficient of rolling resistance between the 30-kg lawn roller and the ground is r=0.1. (a)...

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