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The second floor of a house is 10m above the street level. how much work is needed to move a 120kg sofa to the second floor?

Sagot :

[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 = (120 kg)(9.8 m/s²)(10 m)

[tex]\boxed{W = \text{11,760 J}}[/tex]

Therefore, the work done on the sofa is 11,760 J.

[tex]\\[/tex]

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