posted by Jon on .
Carol and Bruno drag a box of mass 58.0 kg along a frictionless floor. Carol pushes the box with a force of 11.4 N at an angle of 40.0 downward from the horizontal. Bruno pulls the
box from the other side with a force of 11.0 N at an angle of 40.0 above the horizontal. What is the net work done on the box if the displacement of the box is 14.5 m?
11.4(14.5)cos40 get that value and add that to 11.0(14.5)cos40
answer: 2.49 x 10^2 J
I didn't check calc work, but thinking is correct.