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| Q. |
An object at rest will remain at rest and an object in motion will remain in motion until and unless it is acted upon by an external force. This is Newton's – |
| A. | First law |
| B. | Second law |
| C. | Third law |
| D. | Fourth law |
| Answer» A. First law | |
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Explanation: Newton's first law of motion -sometimes referred to as the law of inertia-states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. This is normally taken as the definition of inertia. |
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