Figure shows three forces applied to a trunk that moves leftward by 3 m over a smooth floor. The force magnitudes are F_(1) = 5N, F_(2) = 9N, and F_(3) = 3N. Find net work done on the trunk by the three forces.

Figure shows three forces applied to a trunk that moves leftward by 3

1.	Figure shows three forces applied to a trunk that moves leftward by 3 m over a smooth floor. The force magnitudes are F_(1) = 5N, F_(2) = 9N, and F_(3) = 3N. Find net work done on the trunk by the three forces.
Answer» ANSWER :`-1.5` J