7.2 Work 1. A 500-lb. box is raised through a height of 15.0 ft. How much work is done in lifting the box at a constant velocity? 2. A force of 8.00 N is used to pull a sled through a distance of 100 m. If the force makes an angle of 40° with the horizontal, how much work is done?
7.2 Work 1. A 500-lb. box is raised through a height of 15.0 ft. How much work is done in lifting the box at a constant velocity? 2. A force of 8.00 N is used to pull a sled through a distance of 100 m. If the force makes an angle of 40° with the horizontal, how much work is done?
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Transcribed Image Text:7.2 Work
1. A 500-lb. box is raised through a height of 15.0 ft. How much work is done in lifting the box
at a constant velocity?
2. A force ol 8.00 N is used to pull a sled through a distance of 100 m. If the force makes an
angle of 40° with the horizontal, how much work is done?
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