leannaheath leannaheath

14-11-2018
Physics

contestada

You lift a box weighing 30 N a distance of 0.5 m. Calculate the work done on the box.

15 J

0 J

0.017 J

60 J

Respuesta :

skyluke89 skyluke89

24-11-2018

Answer: 15 J

Explanation:

The work done in lifting the box is equal to the gain in gravitational potential energy of the box, equal to

[tex]W=Fd[/tex]

where

F=30 N is weight of the box

d=0.5 m is the distance through which the box has been lifted

By substituting the numbers into the equation, we find

[tex]W=(30 N)(0.5 m)=15 J[/tex]

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