contestada

A force of 25 newtons moves a box a distance of 4 meters in 5 seconds.
The work done on the box is ____ Nm, and the power is ____ Nm/s.

Respuesta :

By definition, we have that the work done is given by:

[tex] W = F * d
[/tex]

Where,

F: force in the direction of displacement

d: displaced distance

Substituting values we have:

[tex] W = (25) * (4)

W = 100 Nm
[/tex]

Then, the power is given by:

[tex] P = \frac{W}{t} [/tex]

Where,

t: time

Substituting values we have:

[tex] P = \frac{100}{5}
[/tex]

[tex] P = 20\frac{Nm}{s}
[/tex]

Answer:

The work done on the box is 100 Nm, and the power is 20 Nm/s.