The answers in the boxes are the ones I have already tried. The question is grad

Question

The answers in the boxes are the ones I have already tried. The question is graded on every answer being correct. No partial credit.

An action figure is placed on a toy car which is initially at rest. Then the action figure moves through 4 time intervals- 1) the car is pushed until it hits a wall, 2) then the action figure slides down a ramp, 3) flies off of the ramp and hits a wall at the peak of its trajectory momentarily coming to a complete stop, and finally 4) falling into the toybox and coming to rest. Assume that all surfaces except the wall have non-zero coefficients of static and kinetic friction. For each time interval, including the endpoints determine whether the total work done on the action figure by gravity (g), normal forces (N), and friction (f) is positive, negative, or zero. Neglect drag.

Explanation / Answer

The Answer may not make sense but sapling learning says that it is

1.Wg=0; Wn=0; Wf>0

2.Wg>0; Wn=0; Wf<0

3.Wg<0; Wn<0; Wf=0

4.Wg>0; Wn<0; Wf=0

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