Work is measured in Joule. The work done by the given chair is 20 J.
Work:
It is defined as the amount change in the energy. It is the product of force applied and displacement due to force.
Formula for work,
W = F x d
Where,
F - Force applied = 8 N
d - Distance = 2.5 meters
W - Work done = ?
Put the values in the formula,
[tex]\bold {W = 8\times 2.5 }\\\\\bold {W = 20\ J}[/tex]
Therefore, the work done by the given chair is 20 J.
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