A 18kg crate is pushed across the floor, using a force that makes an angle of 21° with the horizontal. The coefficient of static friction between crate and floor is us 0.45. The coefficient of kinetic friction between crate and floor is uk = 0.20. a) What magnitude of pushing force is required to just start the crate sliding? b) Once it has started sliding, if you continue to push the crate with the same amount of force found in "a", what will its acceleration be? %3D
A 18kg crate is pushed across the floor, using a force that makes an angle of 21° with the horizontal. The coefficient of static friction between crate and floor is us 0.45. The coefficient of kinetic friction between crate and floor is uk = 0.20. a) What magnitude of pushing force is required to just start the crate sliding? b) Once it has started sliding, if you continue to push the crate with the same amount of force found in "a", what will its acceleration be? %3D
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 111AP: A crate of mass 100.0 kg rests on a rough surface inclined at an angle of 37.0with the horizontal. A...
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![Challenge Problem : 2D Force application
A 18kg crate is pushed across the floor, using a force that makes an angle of 21° with the
horizontal. The coefficient of static friction between crate and floor is us = 0.45. The coefficient
of kinetic friction between crate and floor is uk = 0.20.
a) What magnitude of pushing force is required to just start the crate sliding?
b) Once it has started sliding, if you continue to push the crate with the same amount of
force found in "a", what will its acceleration be?
Cla](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F2f619dbb-fdef-460b-b92d-9112a1596c50%2Ff4f4090f-aafa-46f1-8471-d8f341943a50%2Fsqf9hw_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Challenge Problem : 2D Force application
A 18kg crate is pushed across the floor, using a force that makes an angle of 21° with the
horizontal. The coefficient of static friction between crate and floor is us = 0.45. The coefficient
of kinetic friction between crate and floor is uk = 0.20.
a) What magnitude of pushing force is required to just start the crate sliding?
b) Once it has started sliding, if you continue to push the crate with the same amount of
force found in "a", what will its acceleration be?
Cla
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