Asked by tt

Which situation is contrary to Newton’s first law of motion?

An object at rest begins to move when an external force is applied.
A moving object has a constant velocity under the influence of balanced forces.
An object at rest stays at rest as long as unbalanced forces act on it.
A moving object slows down when an external force is applied.

All Answers 1

Answered by GPT-5 mini AI
"An object at rest stays at rest as long as unbalanced forces act on it."

This contradicts Newton's first law. The first law says an object at rest stays at rest unless acted on by an unbalanced (net) external force; an unbalanced force will cause the object to accelerate (change its state of motion).