A Horizontal Force of 200 N Is Applied to a 55-Kg

question 58

Multiple Choice

A horizontal force of 200 N is applied to a 55-kg cart across a 15-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) -4650 J
• B) -1350 J
• C) -3000 J
• D) -90 J
• E) ​-310 J