Instructions Click 'start' in the following Active Figure depicting static and kinetic frictional forces with a given applied force to a trash can to complete the exercise. EXPLORE A trash can with a mass of 11 kg has a coefficient of static friction of μg 0.88 and a coefficient of kinetic friction of μ = 0.40. (The Active Figure applies to a similar situation, but the values of the mass, coefficient of static friction and coefficient of kinetic friction may be different. So the values it gives may not be the same values you obtain from your calculations.) (A) What is the maximum horizontal force F that can be exerted without moving the trash can? (B) Suppose this force is just barely exceeded. Determine the acceleration of the trash can as it moves. CONCEPTUALIZE The trash can is being pushed near its base but the applied force is balanced by the force of static friction. The maximum force of static friction is determined by the coefficient of static friction and the normal force that the ground exerts on the trash can. Display in a New Window CATEGORIZE We seek the largest horizontal force F that can be applied without moving the trash can. Examine when it is possible to balance the forces to have no acceleration; this is a problem of balanced forces and equilibrium.
Instructions Click 'start' in the following Active Figure depicting static and kinetic frictional forces with a given applied force to a trash can to complete the exercise. EXPLORE A trash can with a mass of 11 kg has a coefficient of static friction of μg 0.88 and a coefficient of kinetic friction of μ = 0.40. (The Active Figure applies to a similar situation, but the values of the mass, coefficient of static friction and coefficient of kinetic friction may be different. So the values it gives may not be the same values you obtain from your calculations.) (A) What is the maximum horizontal force F that can be exerted without moving the trash can? (B) Suppose this force is just barely exceeded. Determine the acceleration of the trash can as it moves. CONCEPTUALIZE The trash can is being pushed near its base but the applied force is balanced by the force of static friction. The maximum force of static friction is determined by the coefficient of static friction and the normal force that the ground exerts on the trash can. Display in a New Window CATEGORIZE We seek the largest horizontal force F that can be applied without moving the trash can. Examine when it is possible to balance the forces to have no acceleration; this is a problem of balanced forces and equilibrium.
University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter6: Applications Of Newton's Laws
Section: Chapter Questions
Problem 123AP: Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of...
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