What is innershia?

Answer 1

It is spelled Inertia.

Inertia is the property of matter to remain in its state of either motion or rest. For example when u r sitting inside your car and its suddenly halts.Then you are thrown forward.The car stopped.But your body was in the state of motion.So it went forward. Similarly for inertia of rest. Put a pen on a paper and pull the paper quickly from under the pen in one swift move.the pen will almost remain in its original position.This is because it is in inertia of rest.

to learn more and the origins search for Newton's Laws of Motion on wikipedia.The same guy who discovered gravity.

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