Question

define in not more than two lines..
1.inertia
2.newton's first law of motion

Answer 1

Answer:

1. Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion. An aspect of this property is the tendency of objects to keep moving in a straight line at a constant speed, when no forces act upon them.
2. In an inertial frame of reference, an object either remains at rest or continues to move at a constant velocity, unless acted upon by a force.

Answer 2

1) Inertia is the tendency of a body to continue in its state of rest our uniform linear motion.

2)Newton’s first law of motion states that

A body at rest or uniform motion will continue to be at rest or uniform motion until and unless a net external force acts on it.

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