13 A porter lifts a heavy suitcase of mass 80 kg and at the

Last updated: 6/12/2023

13 A porter lifts a heavy suitcase of mass 80 kg and at the destination lowers it down by a distance of 80 cm with a constant velocity Calculate the workdone by the porter in lowering the suitcase take g 9 8 ms 2 cions 1 784 0 J 2 627 2 J 3 627 2 J 627200 I