*The mass of the object is m=15 kg.
*The coefficient of friction is
[tex]\mu=0.25[/tex]The frictional force is,f
[tex]\begin{gathered} f=\mu mg \\ =0.25\times15\text{ kg }\times9.8m/s^2 \\ =13.5\text{ N} \end{gathered}[/tex]Hence the frictional is 13.5 N.
