2/25/20 or 2/28/20 Dispatch #53
How much power is required to carry a
35 N package a vertical distance of 18 m
if the work on the package is
accomplished in 30 s?
Students,
we you feel

Power = 21[W]

Explanation:

Initial data:

F = 35[N]

d = 18[m]

In order to solve this problem we must remember the definition of work, which tells us that it is equal to the product of a force for a distance.

Therefore:

Work = W = F*d = 35*18 = 630 [J]

And power is defined as the amount of work performed in a time interval.

Power = Work / time

Time = t = 30[s]

Power = 630/30

Power = 21 [W]

in physics zero. in muscle fatigue could be high