Newton's Laws Unit Test

Question

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Question
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 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.
It moves forward and upward because those are the greatest net forces.

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.
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Answer 1

To determine the movement of the animal, we need to analyze the forces acting in both the horizontal and vertical directions.

1. Horizontal Forces:

   • Forward force: 5 N
   • Backward friction force: 4 N
   • Net horizontal force = Forward force - Backward force = 5 N - 4 N = 1 N forward

2. Vertical Forces:

   • Upward force: 10 N
   • Downward gravitational force: 10 N
   • Net vertical force = Upward force - Downward force = 10 N - 10 N = 0 N (the forces are balanced)

Given the analysis:

• There is a net force of 1 N forward, which indicates the animal will move forward.
• There is no net vertical force; thus, the animal will not move up or down.

Based on this information, the correct response would be:

It only moves forward because there is a net force forward.