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

6 W

Explanation:

The work done by the force is equal to:

where

F = 4 N is the force exerted

d = 3 m is the displacement

Substituting,

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

where

W = 12 J is the work done

t = 2 s is the time

Substituting,

b.

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