Mary applies a force of 78 N to push a box with an acceleration of 0.54 m/s2. When she increases the pushing force to 83 N, the box's acceleration changes to 0.70 m/s2. There is a constant friction force present between the floor and the box. (a) What is the mass of the box in kilograms? kg (b) What is the coefficient of kinetic friction between the floor and the box?

Mary applies a force of 78 N to push a box with an acceleration of 0.54 m/s2. When she increases the pushing force to 83 N, the box's acceleration changes to 0.70 m/s2. There is a constant friction force present between the floor and the box. (a) What is the mass of the box in kilograms? kg (b) What is the coefficient of kinetic friction between the floor and 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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