a horizontal force of 124 N is used to pull a 1026 N load.What is the coefficient of friction?

Fap-Ff = m*a

124-Ff = m*0 = 0
Ff = 124 N. = Force of friction.

u = Ff/Fl = 124/1026 = 0.121 = Coefficient of friction.

Fap = Force applied.