A mover uses a pulley to lift a 2500N piano up to a second story balcony. The mover pauses to wipe sweat from his forehead while holding the rope tight in one hand. Since the piano is not moving at this time, what is the tension force in the rope while the piano is dangling still in the air?
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A mover uses a pulley to lift a 2500N piano up to a second story balcony. The mover pauses to wipe s...
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