define Newton first,second,third,law of motion with example
Answers
Answer:
1st law - INERTIA OF REST - An object which is at rest remains at rest until and unless an external force is applied on it.
2nd law - INERTIA OF MOTION - An object which is in motion remains at motion until and unless an external force is applied on it.
3rd law - Every action has its equal and opposite reaction.
Answer:
1st law: An object continuous to remain at rest or in a state of uniform motion a straight line unless an external unbalanced force acts on it.
2nd law: The rate of change of momentum is directly proportional to applied force, and the change of momentum occurs in the direction of force.
3rd law: Every action force has an equal and opposite reaction force which acts simultaneously.
eg.
1) An electric fan keeps on rotating for some time even after it is switched off.
2) A static object does not move the application of force.
3) when you jump, your legs apply a force to the ground, and the ground applies and equal and opposite reaction force that propels you into the air.