ou push a box of unknown mass along the floor at a constant speed. You push with a force of 466 N at an angle of 33° below horizontal (as shown below). The coefficient of kinetic friction between the box and the floor is 0.206.  (1) Find the normal force acting on the box.  (2) Find the mass of the box.  (3) How much work is done on the box by kinetic friction as you move the box 2.5 meters across the floor?

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter7: Work And Kinetic Energy
Section: Chapter Questions
Problem 100CP: The surface of the preceding problem is modified so that the coefficient of kinetic friction is...
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You push a box of unknown mass along the floor at a constant speed. You push with a force of 466 N at an angle of 33° below horizontal (as shown below). The coefficient of kinetic friction between the box and the floor is 0.206. 

(1) Find the normal force acting on the box. 

(2) Find the mass of the box. 

(3) How much work is done on the box by kinetic friction as you move the box 2.5 meters across the floor? 

 

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