A Horizontal Force of 200 N Is Applied to a 55.0-Kg

Multiple Choice

A horizontal force of 200 N is applied to a 55.0-kg cart across a 15.0-m level surface.If the cart accelerates at 2.0 m/s²,then what is the work done by the force of friction as it acts to retard the motion of the cart?

A) -4.7E+3 J
B) -1.4E+3 J
C) -3.0E+3 J
D) -9.0E+1 J
E) -3.1E+2 J