The figure shows three forces applied to a trunk that moves leftward by 2.94 m over a frictionless floor. The force magnitudes are F = 5.02 N, F2 = 8.90 N, and F3 = 2.72 N, and the indicated angle is e = 60°. (a) During the displacement, what is the net work done on the trunk by the three applied forces, the gravitational force, and the normal force? (b) Is there a net transfer of energy to or from the trunk? (c) Does the kinetic energy of the trunk increase or decrease? (a) Number Units (b) (c)

College Physics
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ISBN:9781305952300
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Chapter5: Energy
Section: Chapter Questions
Problem 8P: A block of mass m = 2.50 kg is pushed a distance d = 2.20 m along a frictionless horizontal table by...
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The figure shows three forces applied to a trunk that moves leftward by 2.94 m over a frictionless floor. The force magnitudes are
F = 5.02 N, F2 = 8.90 N, and F3 = 2.72 N, and the indicated angle is e = 60°. (a) During the displacement, what is the net work done on
the trunk by the three applied forces, the gravitational force, and the normal force? (b) Is there a net transfer of energy to or from the
trunk? (c) Does the kinetic energy of the trunk increase or decrease?
(a) Number
Units
(b)
(c)
Transcribed Image Text:The figure shows three forces applied to a trunk that moves leftward by 2.94 m over a frictionless floor. The force magnitudes are F = 5.02 N, F2 = 8.90 N, and F3 = 2.72 N, and the indicated angle is e = 60°. (a) During the displacement, what is the net work done on the trunk by the three applied forces, the gravitational force, and the normal force? (b) Is there a net transfer of energy to or from the trunk? (c) Does the kinetic energy of the trunk increase or decrease? (a) Number Units (b) (c)
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