Question

During a move, Jonas and Matías carry a 115kg safe to the third floor of a building, covering a height of 6.6m.

1) = what work do they do?
2) = what power do they develop if the work is done in 5.5 minutes?

Answer 1

Answer:

work is =7590joules

power = 23watts

Answer 2

Answer:

1) 7590 Joules

2) 23 Watts

Explanation:

1) Work = force × distance

W = mgh

W = (115 kg) (10 m/s²) (6.6 m)

W = 7590 J

2) Power = work / time

P = W / t

P = (7590 J) / (330 s)

P = 23 W