1. The figure shows three forces applied to a trunk that moves leftward by 2.54m over a frictionless floor. The force magnitudes are F1 = 5.08 N, F2 = 8.87 N, and F, = 3.39 N, and the indicated angle is & = 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?
1. The figure shows three forces applied to a trunk that moves leftward by 2.54m over a frictionless floor. The force magnitudes are F1 = 5.08 N, F2 = 8.87 N, and F, = 3.39 N, and the indicated angle is & = 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?
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Transcribed Image Text:1. The figure shows three forces applied to a trunk that moves leftward by 2.54m over a frictionless floor.
The force magnitudes are F1 = 5.08 N, F2 = 8.87 N, and F, = 3.39 N, and the indicated angle is & = 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?
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