b, took the test
Can u upload picture for 4?
Objects W and Y have balanced forces, and objects X and Z have unbalanced forces.
We represent the table below and study which forces are balanced in the vertical and horizontal directions separately:
Study of the balance of vertical forces (we study the Up and Down forces (Columns and . e notice that the magnitudes we read for object W are 30N and 30N respectively, therefore this object is vertically balanced. Object X is also vertically balanced since the magnitude of the force pointing up equals the magnitude of force pointing down (15N in both cases). Objects Y and Z are also balanced vertically, since for object Y the force up is 60N and equal in magnitude to the downward force of 60N; and object Z has 45N pointing up and also 45N pointing down. Then vertically, all objects are balanced.
Now the horizontal analysis of forces:
Object W shows 20N to the right and 20N to the left, so this object is balanced also horizontally.
Object X is NOT balanced because the force to the right 35N is 10N larger than the force to the left (25N)
Object Y is horizontally balanced since it has 0N both left and right.
Object Z is NOT balanced horizontally, since the force to the left is 22N while there is a zero force to the right.
In summary: the only objects that are completely balanced (vertically and horizontally) are: object W and object Y. While objects X and Z have unbalanced forces
This is a whole entire test