A person pushes a 12.9-kg shopping cart at a constant velocity for a distance of 26.9 m on a flat horizontal surface. She pushes in a direction 26.7° below the horizontal. A 50.4-N frictional force opposes the motion of the cart. (a) What is the magnitude of the force that the shopper exerts? Determine the work done by (b) the pushing force, (c) the frictional force, and (d) the gravitational force. (a) Number (b) Number i (c) Number i (d) Number i Units Units Units Units + 수 +
A person pushes a 12.9-kg shopping cart at a constant velocity for a distance of 26.9 m on a flat horizontal surface. She pushes in a direction 26.7° below the horizontal. A 50.4-N frictional force opposes the motion of the cart. (a) What is the magnitude of the force that the shopper exerts? Determine the work done by (b) the pushing force, (c) the frictional force, and (d) the gravitational force. (a) Number (b) Number i (c) Number i (d) Number i Units Units Units Units + 수 +
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 33P: A 5.0-kg box rests on a horizontal surface. The coefficient of kinetic friction between the box and...
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