According to Newton’s third law of motion, which statement is always correct?

Question

• If two moving objects collide, then both will stop moving.
• If two moving objects collide, then they will bounce off each other.
• If a moving object hits another object, then the second object will push back.
• If a moving object hits another object, then the second object will start moving.

Answer 1

The correct statement according to Newton's third law of motion is: If a moving object hits another object, then the second object will push back. This is because Newton's third law states that for every action, there is an equal and opposite reaction. So when an object exerts a force on another object, the second object will exert an equal and opposite force back on the first object. This is why we feel a push back when we push against a wall or a chair. In the case of a collision between two objects, both objects will experience equal and opposite forces, causing them to push back against each other. Therefore, the correct statement is that they will bounce off each other.