To find the net force on the object, you need to consider the directions of the forces.
The forces are:
- 30 N directed west
- 12 N directed east
Since west is taken as a negative direction and east as a positive direction, we can represent these forces as:
- 30 N west = -30 N
- 12 N east = +12 N
Now, we can calculate the net force (F_net):
\[ F_{\text{net}} = -30 N + 12 N = -18 N \]
The negative sign indicates that the net force is directed west.
Therefore, the net force on the object is 18 N west.
The correct response is:
18N west.
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