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0.5 m.

Explanation:

From the question given above, the following data were obtained:

Force (F) applied = 5 N

Work done (W) = 2.5 J

Distance (s) travalled by the book =?

We can obtain the distance travelled by the book by applying the formula of work done. This is illustrated below:

Work done (W) = Force (F) × Distance (s)

W = F × s

Force (F) applied = 5 N

Work done (W) = 2.5 J

Distance (s) travalled by the book =?

2.5 = 5 × s

Divide both side by 5

s = 2.5/5

s = 0.5 m

From the above calculation, the book will travel 0.5 m when a force of 5 N is applied.