Final answer:
To find the net force on the couch, sum the forces acting on it considering their direction, resulting in a net force of 105 N to the right.
Step-by-step explanation:
The subject of the question is Physics, and it requires an understanding of net force calculations. To find the net force exerted on the couch, we sum up all the forces acting on it, taking into account their directions. Since force is a vector quantity, it has both magnitude and direction.
Here's how the calculation goes:
- 50 N to the right
- 75 N to the right
- 20 N to the left (which is the same as -20 N to the right)
Adding these forces together:
Net force = 50 N + 75 N - 20 N
Net force = 125 N - 20 N
Net force = 105 N to the right.
Therefore, the correct answer is A. 105 N to the right.