A3. Two workers are moving a box of mass 70 kg across a surface with coefficient of static friction u, = 0.6, and kinetic F, %3D F2 friction u 0.32. Worker 1 pulls horizontally with F,= 150 N while Worker 2 pushes with F;= 280 N at a downward angle of 25°. %3D a) In the diagram, sketch in the other 3 forces in this problem. Use that as your free body diagram to set-up Newton's 2 Law in x- and y- directions b) Calculate fs.mas and compare it to the quantity F, + F, to show the box will move. c) Now use kinetic friction and calculate the acceleration of the box.

A3. Two workers are moving a box of mass 70 kg across a surface with coefficient of static friction u, = 0.6, and kinetic F, %3D F2 friction u 0.32. Worker 1 pulls horizontally with F,= 150 N while Worker 2 pushes with F;= 280 N at a downward angle of 25°. %3D a) In the diagram, sketch in the other 3 forces in this problem. Use that as your free body diagram to set-up Newton's 2 Law in x- and y- directions b) Calculate fs.mas and compare it to the quantity F, + F, to show the box will move. c) Now use kinetic friction and calculate the acceleration of the box.

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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