0508302
0508302 0508302
  • 14-01-2023
  • Physics
contestada

A 7,500-W engine is used to lift an I-beam with a mass of 1,000 kg to a height of 150 m. How much work must be done to lift this mass at a constant speed? How long will it take?
Use these formulas: W = F x d F = m x 9.8 m/s² t = W/P

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