Explanation:
Given that,
Distance = 1.2 m
Force = 10 N
Friction force = 5.9 N
We need to calculate the work done by the force of 10 N
Using formula of work done
[tex]W = F\cdot d[/tex]
Put the value into the formula
[tex]W=10\times1.2[/tex]
[tex]W=12\ J[/tex]
We need to calculate the work done by the force of friction
[tex]W=5.9\times1.2[/tex]
[tex]W=7.08\ J[/tex]
We need to calculate the work done by the force of gravity
As there is no vertical force act on the book .
So, The work done will be zero.
Hence, The is the required solution.