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State Newton’S First Law of Motion. Give Two Examples to Illustrate Newton’S First Law of Motion. - CBSE Class 9 - Science

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Question

State Newton’s first law of motion. Give two examples to illustrate Newton’s first law of motion.

Solution

According to Newton’s first law of motion:
A body at rest will remain at rest and a body in motion will continue in motion in a straight line with a constant velocity, unless it is compelled by an external force to change its state of rest or of uniform motion.

Examples:
(a) A book lying on a table cannot change its state of rest unless an external force is applied on the book.
(b) A car set free on a sloppy road will continue to be in motion unless an external force applied by hands or brakes to bring the car to rest.

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APPEARS IN

 Lakhmir Singh Solution for Science for Class 9 Part 1 Physics (2016 to Current)
Chapter 2: Force and Laws of Motion
Short Answers | Q: 28 | Page no. 56

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Solution State Newton’S First Law of Motion. Give Two Examples to Illustrate Newton’S First Law of Motion. Concept: First Law of Motion.
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