Which of the following conditions would always result in a net force of 0 N?

Question

answers:
One person is pushing and another is pulling on the same object.

Two equal but opposite forces act on an object.

Two people push on an object with the same force.

An object is at rest.

Answer 1

The conditions that would always result in a net force of 0 N are:

1. Two equal but opposite forces act on an object. - This directly satisfies the condition for equilibrium, as the forces cancel each other out.

2. An object is at rest. - If an object is at rest and there are no unbalanced forces acting on it, the net force is also 0 N. However, this condition can depend on the equilibrium of forces acting on the object.

While the other options may suggest scenarios that could lead to a net force of 0 N, they do not guarantee it in every situation:

• One person is pushing and another is pulling on the same object. (This depends on the magnitude and direction of the forces; if they are not equal and opposite, the net force may not be 0 N.)
• Two people push on an object with the same force. (This also depends on the direction of the push; if they are pushing in the same direction, the net force is not 0 N.)

So, the most consistent and clear answer is: Two equal but opposite forces act on an object.