Imagine a scenario in which an animal's force is pushing itself forward 5 N, friction is pushing it 4 N backward, gravity is pushing the animal 10 N down, and the animal is pushing itself 10 N up. Describe the movement of the animal.(1 point) Responses It moves 29 N forward because that's the net force. It moves 29 N forward because that's the net force. It moves 10 N down and 10 N up as those are the greatest forces acting on the animal. It moves 10 N down and 10 N up as those are the greatest forces acting on the animal. It only moves forward because there is a net force forward. It only moves forward because there is a net force forward. It moves forward and upward because those are the greatest net forces.

1 answer

To analyze the movement of the animal based on the forces described:

  1. The forward force is 5 N.
  2. The backward frictional force is 4 N.
  3. The upward force is 10 N.
  4. 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."