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Explain whether Positive, negative, or no work is being done on a suitcase when you: (a) pick it up from the floor. (b) carry it
- Explain whether Positive, negative, or no work is being done on a suitcase when you:
(a) pick it up from the floor.
(b) carry it at a steady speed on a level street to the bus stop.
(c) hold it above the ground while you wait for the bus.
(d) Placing it back on the floor.
- A 45-kg crate is pulled 35 m along a horizontal floor by a constant force exerted by a person, F=115N, which acts at a 32 angle. The coefficient of friction is 0.15. Determine the work done on the crate by each force, and the total work done on the crate.
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