Mary applies a force of 72 N to push a box with an acceleration of 0.41 m/s?. When she increases the pushing force to 77 N, the box's acceleration changes to 0.71 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 72 N to push a box with an acceleration of 0.41 m/s?. When she increases the pushing force to 77 N, the box's acceleration changes to 0.71 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?
College Physics
10th Edition
ISBN:9781285737027
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter4: The Laws Of Motion
Section: Chapter Questions
Problem 20CQ: A large crate of mass m is placed on the back of a truck but not tied down. As the truck accelerates...
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