To analyze the movement of the animal based on the forces described:
- The forward force is 5 N.
- The backward frictional force is 4 N.
- The upward force is 10 N.
- The downward gravitational force is 10 N.
First, we can calculate the net force in the horizontal direction (forward/backward):
- Forward force: 5 N
- Backward force: 4 N
- Net horizontal force = forward - backward = 5 N - 4 N = 1 N forward
Next, we can look at the vertical forces (upward/downward):
- Upward force: 10 N
- Downward force: 10 N
- Net vertical force = upward - downward = 10 N - 10 N = 0 N
Since there is a net force of 1 N forward, but no net force in the vertical direction (0 N), the animal will move forward with a small upward vertical component, but it won't move up or down.
Therefore, the correct response based on the analysis would be:
"It only moves forward because there is a net force forward."