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a book of mass 2 kg is on the floor. if the book is lifted from the floor to the top shelf which is 2.5 Meters from the floor. how much work is done on the floor.

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TOKAMAKIN

[tex]\tt{\huge{\blue{Explanation:}}}[/tex]

The work done on an object is given by

[tex]\boxed{W = mgh}[/tex]

where:

W = work

m = mass

g = acceleration due to gravity = 9.8 m/s²

h = height

[tex]\tt{\huge{\red{Solution:}}}[/tex]

Solving for the work

W = mgh

W = (2 kg)(9.8 m/s²)(2.5 m)

[tex]\boxed{W = \text{49 J}}[/tex]

Therefore, the work done on the book is 49 J.

[tex]\\[/tex]

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