RivvytheFanboy6420 RivvytheFanboy6420
  • 18-01-2024
  • Physics
contestada

A porter lifts a heavy suitcase of mass 80kg and at the destination lowers it down by a distance of 80 cm with a constant velocity. Calculate the work done by the porter in lowering the suitcase. (take g=9.8ms⁻²)
A. – 627.2J
B. −62720.0J
C. 784.0J
D. +627.2J

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