Jack and Jill were testing Newton's 3rd law. Jill moved backwards but Jack moved forward.
Explanation:
Newton's 3rd law of motion states that:
"When an object A exerts a force (called action) on an object B, then object B exerts an equal and opposite force (called reaction) on object A"
In this situation, we can identify:
- Jack as "object A"
- Jill as "object B"
Therefore, according to Newton's 3rd law, when Jack pushes on Jill (action), Jill pushes back on Jack with an equal and opposite force (reaction).
As a result, they will move in opposite directions, since the forces they apply on each other are in opposite directions as well.
So, the correct option is
Jack and Jill were testing Newton's 3rd law. Jill moved backwards but Jack moved forward.
Learn more about Newton's 3rd law:
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