5. A crate of mass 10.0 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling force is 100 N parallel to the incline, which makes an angle of 20.0° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 5.00 m. (a) How much work is done by gravity? (b) How much energy is lost due to friction? (c) How much work is done by the 100 N force? (d) What is the change in kinetic energy of the crate? (e) What is the speed of the crate after being pulled 5.00 m?
5. A crate of mass 10.0 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling force is 100 N parallel to the incline, which makes an angle of 20.0° with the horizontal. The coefficient of kinetic friction is 0.400, and the crate is pulled 5.00 m. (a) How much work is done by gravity? (b) How much energy is lost due to friction? (c) How much work is done by the 100 N force? (d) What is the change in kinetic energy of the crate? (e) What is the speed of the crate after being pulled 5.00 m?
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Dynamics of Rigid Bodies problem:
Transcribed Image Text:5. A crate of mass 10.0 kg is pulled up a rough incline with an initial speed of 1.50 m/s. The pulling
force is 100 N parallel to the incline, which makes an angle of 20.0° with the horizontal. The
coefficient of kinetic friction is 0.400, and the crate is pulled 5.00 m. (a) How much work is done by
gravity? (b) How much energy is lost due to friction? (c) How much work is done by the 100 N
force? (d) What is the change in kinetic energy of the crate? (e) What is the speed of the crate after
being pulled 5.00 m?
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