Question

How much power would be required to lift a 10-N box 2 meters

Answer 1

The power required is 20 W

Explanation:

There is a missing piece of information in the question: the time needed to lift the box. Therefore, I will assume it is 1 second.

First of all, we need to calculate the work done in lifting the box. This is given by the equation:

$W=Fd$

where

F = 10 N is the weight of the box

d = 2 m is the distance through which the box has been lifted

Substituting, we find

$W=(10)(2)=20 J$

Now, we can find the power required, which is given by

$P=\frac{W}{t}$

where

W = 20 J is the work done

t = 1 s is the time required

Substituting, we find

$P=\frac{20}{1}=20 W$

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