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Which of the following statements are correct? i)The natural tendency of objects to resist a change in their state of rest or of uniform motion is called inertia. ii) The mass of an object is a measure of its inertia. iii) SI unit of mass is kg.

Which of the following statements are correct? i)The natural tendency of objects to resist a change in their state of rest or of uniform motion is called inertia. ii) The mass of an object is a measure of its inertia. iii) SI unit of mass is kg. Correct Answer All i, ii and iii

Concept:

Newton’s First Law

  • It states that if A body continues to be in its state of rest or of uniform motion along a straight line, unless it is acted upon by some external force to change the state.
  • If no net force acts on a body, then the velocity of the body cannot change i.e. the body cannot accelerate.
  • Newton’s first law defines inertia and is rightly called the law of inertia.

Inertia 

  • An inherent property of all the bodies by virtue of which they cannot change their state of rest or uniform motion along a straight line by their own is called inertia.
  • Inertia is not a physical quantity, it is only a property of the body which depends on the mass of the body.
  • Inertia has no units and no dimensions.

Explanation:

Now in our case,

  • If we have two bodies of equal mass, one in motion and another is at rest, possess the same inertia because it is a factor of mass only and does not depend upon the velocity.
  • For example - A bag placed in a room will be placed there only until an external force that is you or any family member will move it. 
  • The mass of an object is a measure of its inertia.
  • SI unit of mass is the kilogram (kg).

So by these all the options i, ii,iii are correct.

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council meeting, December 10-11, 2017. “We started an awareness campaign in the year 2005-2006 with H H The Dalai Lama when we learnt that tiger skins were
being traded in China and Tibet. At that time, I was not a Buddhist; I wrote to the Dalai Lama asking him to say that this is harmful and he wrote back to say, “We
will stop this.” He used very strong words during the Kalachakra in 2006, when he said, If he sees people wearing fur and skins, he doesnt feel like living. This sent
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will stop this.” He used very strong words during the Kalachakra in 2006, when he said, If he sees people wearing fur and skins, he doesnt feel like living. This sent
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