Hauhanws5182 Hauhanws5182
  • 08-04-2019
  • Physics
contestada

The power required to exert 4-n force over 3 meters in 2 seconds is

Respuesta :

skyluke89
skyluke89 skyluke89
  • 11-04-2019

Answer:

6 W

Explanation:

The work done by the force is equal to:

[tex]W=Fd[/tex]

where

F = 4 N is the force exerted

d = 3 m is the displacement

Substituting,

[tex]W=(4 N)(3 m)=12 J[/tex]

The power is equal to the ratio between work done and time taken:

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

where

W = 12 J is the work done

t = 2 s is the time

Substituting,

[tex]P=\frac{12 J}{2 s}=6 W[/tex]

Answer Link

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