Newton's Laws - Mission NL1 Detailed Help


An object will not have any inertia if ...





 
Definition of Inertia:
The property of an object which describes its natural tendency to keep on doing whatever it is doing.


 
All objects have inertia. Not all objects have the same amount of inertia. Some objects have more than others. That is why inertia is sometimes described as a property of an object. Such a property cannot depend on how the object is moving - whether it is at rest, accelerating, moving slowly or moving at high speeds. Consider this analogy: color is a property of your car. If your car is red, then the color red describes an intrinsic property of your car. If your car turned colors as you began to accelerate or made a turn off the expressway, then red would not be an appropriate property to describe your car. In the same sense, inertia is a property of an object. And being a property of an object, the inertia of the object cannot be dependent upon how the object is moving. Inertia depends solely upon mass; and since all objects have mass, all objects have inertia.


 

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