Question

Sally applies a total force of 285 N with a
rope to drag a wooden crate of mass 100 kg
across a floor with a constant acceleration in
the x-direction of a = 0.1 m/s2. The rope tied
to the crate is pulled at an angle of  = 36
relative to the floor. Calculate the total work done by friction as
the block moves a distance 53.5 m over the
horizontal surface. The acceleration due to
gravity is 9.8 m/s2 .
Answer in units of J

Answer 1

would this be fx-ma=friction