Question

DEL
1.
What is the work done by a man in carrying a suitcase of mass
30 kg over his head when he travels a distance of 10 m in Horizontal
direction
Boxilo -
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Answer 1

Answer:

Work done in horizontal direction = 0 as the potential energy is not changed and the change in kinetic energies : initial and final - is zero. There is a force F1 lifting the body upwards. There is Weight W = m g pulling the body downwards.

Answer 2

Answer:

Work done in horizontal direction = 0 as the potential energy is not changed and the change in kinetic energies : initial and final - is zero