newton's first law

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Definitions from WordNet

Noun newton's first law has 1 sense

first law of motion, Newton's first law of motion, Newton's first law - a body remains at rest or in motion with a constant velocity unless acted upon by an external force
--₁ is a kind of Newton's law of motion, Newton's law, law of motion

Definitions from the Web

Newton's First Law

Description:

Newton's First Law of Motion, also known as the law of inertia, states that an object at rest tends to stay at rest and an object in motion tends to stay in motion with the same speed and in the same direction unless acted upon by an external force.

Sample sentences:

The book on the table remains at rest until someone applies force and pushes it.
A car moving down a straight road will continue in motion even if the engine is turned off, gradually slowing down due to friction.
If there were no friction in space, an astronaut would continue to float in the same direction and with the same speed.

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