A large object moves to the right across a horizontal surface. The figure depicts five forces acting on the object, each with the same magnitude but exerted in different directions. For each one, a) determine whether the work done is positive or negative.b) Students were asked to rank the work done by the forces with the greatest first. Here is what one student was thinking: “I know that since W=Fcos, the more the force pushes in the direction that the object moves, the more work done. So, I think that F1 does the most work, but I am not sure about F2 and F5. The angle for both is the same, but they are pointing in different directions. I know that the sign for vectors just means direction and not size, but I am not sure here.”How would you explain the meaning of the sign for Work? How would you Rank the Work done? 2. A large object moves to the right across a horizontal surface. The figure depicts five forces acting on theobject, each with the same magnitude but exerted in different directions. For each one,a) determine whether the work done is positive or negative.Force SignRank(+,-)20F,FF2AxF;F,F3b) Students were asked to rank the work done by the forces with the greatest first. Here is what one student wasthinking: "I know that since W = F cos0, the more the force pushes in the direction that the object moves, themore work done. So, I think that F, does the most work, but I am not sure about F,and F, The angle for both isthe same, but they are pointing in different directions. I know that the sign for vectors just means direction andnot size, but I am not sure here."How would you explain the meaning of the sign for Work? How would you Rank the Work done?

Name: A large object moves to the right across a horizontal surface. The fig
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Description: A large object moves to the right across a horizontal surface. The figure depicts five forces acting on the object, each with the same magnitude but exerted in different directions. For each one, a) determine whether the work done is positive or nega

Let each force acting on the object is F. That is F1=F2=F3=F4=F5=F The work done by each force is…

Answered: 2. A large object moves to the right…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter5: Energy

Section: Chapter Questions

Problem 4P: a shopper in a supermarket pushes a cart with a force of 35 N directed at an angle of 25 below the...

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A large object moves to the right across a horizontal surface. The figure depicts five forces acting on the object, each with the same magnitude but exerted in different directions. For each one,

a) determine whether the work done is positive or negative.

b) Students were asked to rank the work done by the forces with the greatest first. Here is what one student was thinking: “I know that since W=Fcos, the more the force pushes in the direction that the object moves, the more work done. So, I think that F1 does the most work, but I am not sure about F2 and F5. The angle for both is the same, but they are pointing in different directions. I know that the sign for vectors just means direction and not size, but I am not sure here.”

How would you explain the meaning of the sign for Work? How would you Rank the Work done?

2. A large object moves to the right across a horizontal surface. The figure depicts five forces acting on the
object, each with the same magnitude but exerted in different directions. For each one,
a) determine whether the work done is positive or negative.
Force Sign
Rank
(+,-)
20
F,
F
F2
Ax
F;
F,
F3
b) Students were asked to rank the work done by the forces with the greatest first. Here is what one student was
thinking: "I know that since W = F cos0, the more the force pushes in the direction that the object moves, the
more work done. So, I think that F, does the most work, but I am not sure about F,and F, The angle for both is
the same, but they are pointing in different directions. I know that the sign for vectors just means direction and
not size, but I am not sure here."
How would you explain the meaning of the sign for Work? How would you Rank the Work done?

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