In which situation are unbalanced forces acting on an object?(1 point)

Responses

Two people stand on the same side of a large tire. One person pushes the tire and the other pulls the tire with equal force.
Two people stand on the same side of a large tire. One person pushes the tire and the other pulls the tire with equal force.

Two people stand on the same side of a large tire. Both people pull the tire with equal force.
Two people stand on the same side of a large tire. Both people pull the tire with equal force.

Two people stand on opposite sides of a large tire. Both people push the tire with equal force.
Two people stand on opposite sides of a large tire. Both people push the tire with equal force.

Two people stand on opposite sides of a large tire. Both people pull the tire with equal force.

Unbalanced forces occur when there is a non-zero net force acting on an object, which results in the object changing its velocity (i.e., either speeding up, slowing down, or changing direction). To identify the situation with unbalanced forces among the provided options, we should look for a scenario where equal forces are not canceling each other out.

Let's evaluate each scenario:

1. Two people stand on the same side of a large tire. One person pushes the tire and the other pulls the tire with equal force.

In this situation, if the forces are equal in magnitude but opposite in direction, and both are acting on the same side of the tire, they effectively cancel each other out. Thus, there is no net force, meaning the forces are balanced.

2. Two people stand on the same side of a large tire. Both people pull the tire with equal force.

In this scenario, both people are exerting force in the same direction, and since they are on the same side, the forces add up. However, since no other forces are mentioned that oppose these forces, we do not have enough information to conclude whether the forces are unbalanced or balanced. There could be other forces at play (like friction or another person pulling the other way).

3. Two people stand on opposite sides of a large tire. Both people push the tire with equal force.

This situation is similar to the first one, except now the two forces are acting on opposite sides. If the forces are equal in magnitude and direction but applied from opposite sides, they will cancel each other out. Therefore, the forces are balanced.

4. Two people stand on opposite sides of a large tire. Both people pull the tire with equal force.

Here, two people are exerting forces in the same direction, but because they are on opposite sides, their forces will not cancel each other out. Instead, they combine to create a larger net force in one direction. This means that the forces involved are unbalanced and will cause a change in the tire's velocity, assuming there are no other forces acting on the tire that we haven't been told about.

Assuming all forces acting are mentioned in each scenario and there are no other external forces like friction opposing the motion, the situation with unbalanced forces would be:

Two people stand on opposite sides of a large tire. Both people pull the tire with equal force.