Mary applies a force of 74 N to push a box with an acceleration of 0.42 m/s. When she increases the pushing force to 79 N, the box's acceleration changes to 0.72 m/s. 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 74 N to push a box with an acceleration of 0.42 m/s. When she increases the pushing force to 79 N, the box's acceleration changes to 0.72 m/s. 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?

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Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 25PQ: The starship Enterprise has its tractor beam locked onto some valuable debris and is trying to pull...

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