Your brand new 75.0-kg refrigerator falls out of the back of your truck while you are traveling up a 45.0° incline. It slides 55.0 m to the bottom of the hill and is miraculously unharmed. The coefficient of kinetic friction between the refrigerator and the road is µk = 0.45. (a) Calculate the work done on the package by friction. (b) Calculate the work done on the package by gravity. (c) Calculate the work done on the package by the normal force. (d) Calculate the net work done on the package.

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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Your brand new 75.0-kg refrigerator falls out of the back of your truck while you are
traveling up a 45.0° incline. It slides 55.0 m to the bottom of the hill and is miraculously
unharmed. The coefficient of kinetic friction between the refrigerator and the road is µk =
0.45.
(a) Calculate the work done on the package by friction.
(b) Calculate the work done on the package by gravity.
(c) Calculate the work done on the package by the normal force.
(d) Calculate the net work done on the package.
Transcribed Image Text:Your brand new 75.0-kg refrigerator falls out of the back of your truck while you are traveling up a 45.0° incline. It slides 55.0 m to the bottom of the hill and is miraculously unharmed. The coefficient of kinetic friction between the refrigerator and the road is µk = 0.45. (a) Calculate the work done on the package by friction. (b) Calculate the work done on the package by gravity. (c) Calculate the work done on the package by the normal force. (d) Calculate the net work done on the package.
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