It’s more difficult to start moving a heavy carton from rest than it is to keep pushing it with constant velocity becauseThe normal force is greater when the carton is at restus < ukinitially, the normal force is not perpendicular to the applied force uk< us

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It’s more difficult to start moving a heavy carton from rest than it is to keep pushing it with constant velocity because

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter4: Newton's Laws Of Motion

Section: Chapter Questions

Problem 31P: The coefficient of static friction between the 3.00-kg crate and the 35.0 incline of Figure P4.31 is...

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Question

It’s more difficult to start moving a heavy carton from rest than it is to keep pushing it with constant velocity because

The normal force is greater when the carton is at rest
u_s < u_k
initially, the normal force is not perpendicular to the applied force
u_k< u_s

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