Which of the following has more inertia: (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a fiverupees coin and a one-rupee coin?
NCERT Class IX
Sciences - Main Course Book
Chapter 9. Force and Laws of Motion
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Inertia of a body is measured / indicated by its mass.
Density of a rubber ball is less than the density of stone. So as they are of the same size, mass of a rubber ball is less than that of a stone. So inertia of a stone is more.
mass of a train is more. So it has more inertia.
5 Rs coin has more mass than that of a 1 Rs coin. So a 5 Rs coin has more inertia.
Density of a rubber ball is less than the density of stone. So as they are of the same size, mass of a rubber ball is less than that of a stone. So inertia of a stone is more.
mass of a train is more. So it has more inertia.
5 Rs coin has more mass than that of a 1 Rs coin. So a 5 Rs coin has more inertia.
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Answer:
Answer:
A) A stone
B) A train
C) A Five Rupee coin
Explanation:
Here, Inertia depends on mass of the object...
So Greater the mass ,Greater the Inertia.
Therefore,
*A stone has more mass than rubber ball
*Train (more mass than bicycle)
* Five - Rupee coin
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