What is the measure of inertia of a body in linear motion? which has more inertria
i)a rubber ball or stone of same size? Why?
ii)a five rupee coin or a one rupee coin? Why?
Answers
Answer:
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Explanation:
The inertia of a body at a certain speed is measured by its mass times its velocity, which is called momentum. Newton described inertia as a body at rest will remain at rest and a body in motion will remain in motion at constant velocity unless acted upon by a force.
Which has more intertia?
Mass is that quantity that is solely dependent upon the inertia of an object. The more inertia that an object has, the more mass that it has. A more massive object has a greater tendency to resist changes in its state of motion.
(a) A stone of the same size as rubber ball has more mass. As mass is a measure of inertia, therefore, stone has more inertia than a rubber ball.
(b) Mass of a five rupee coin is more than that of a one-rupee coin. Hence, inertia of the five rupee coin is greater than that of the one-rupee coin.