Answer:
25 N
Explanation:
Work is a product of force and perpendicular distance moved.
W=Fd where F is force exerted and d is perpendicular distance.
However, for this case, the distance is inclined hence resolving it to perpendicular so that it be along x-axis we have distance as [tex]dcos\theta[/tex]
Therefore, [tex]W=Fdcos\theta[/tex]
Making F the subject of the formula then
[tex]F=\frac {W}{dcos\theta}[/tex] where [tex]\theta[/tex] is the angle of inclination. Substituting 190 J for W then 18 degrees for [tex]\theta[/tex] and 8 m for d then
[tex]F=\frac {190}{8cos18^{\circ}}\approx 25N[/tex]
