A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.44 m/s. The pulling force is 104 N parallel to the incline, which makes an angle of 19.5° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 4.92 m. (a) How much work is done by the gravitational force on the crate? -152.37 J (b) Determine the increase in internal energy of the crate-incline system owing to friction. 471.0 X A careful free-body diagram of the crate may help you determine the magnitude of the friction force. J (c) How much work is done by the 104-N force on the crate? 511.68 J (d) What is the change in kinetic energy of the crate? 184.95 J (e) What is the speed of the crate after being pulled 4.92 m? 6.47 m/c

A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.44 m/s. The pulling force is 104 N parallel to the incline, which makes an angle of 19.5° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 4.92 m. (a) How much work is done by the gravitational force on the crate? -152.37 J (b) Determine the increase in internal energy of the crate-incline system owing to friction. 471.0 X A careful free-body diagram of the crate may help you determine the magnitude of the friction force. J (c) How much work is done by the 104-N force on the crate? 511.68 J (d) What is the change in kinetic energy of the crate? 184.95 J (e) What is the speed of the crate after being pulled 4.92 m? 6.47 m/c

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Description: A crate of mass 9.4 kg is pulled up a rough incline with an initial speed of 1.44 m/s. The pulling force is 104 N parallel tothe incline, which makes an angle of 19.5° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter7: Work, Energy, And Energy Resources

Section: Chapter Questions

Problem 7PE: A shopper pushes a grocery cart 20.0 m at constant speed on level ground, against a 35.0 N...

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