What is Newton's first law?

Problem Statement

What is Newton's first law?

Step-by-Step Explanation

Newton's first law says an object maintains its motion unless acted on by a net external force.

1. Identify what the question is asking. In Physics, this usually means naming the known quantities, the unknown quantity, and the concept that connects them.
2. Write the relevant definition, rule, or relationship before substituting numbers or manipulating symbols.
3. Work one step at a time and keep units, signs, and restrictions visible.
4. Check whether the answer makes sense in the original context.

Final Answer

Newton's first law says an object maintains its motion unless acted on by a net external force. The reliable strategy is to start from the definition, apply the correct rule carefully, and then interpret the result in plain language.