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Physics, 21.08.2019 20:30 Sparkleskeepsgoing
Acrane lifts a 425 kg steel beam vertically upward a distance of 98 m. how much work does the crane do on the beam if the beam accelerates upward at 1.8 m/s^2? neglect frictional forces. a) 2.8 x 10^5j b) 4.1 x 10^5j c) 4.8 x 10^5j d) 3.3 x 10^5j
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Acrane lifts a 425 kg steel beam vertically upward a distance of 98 m. how much work does the crane...
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