Tag: inertia and mass

Reynolds number represents the ratio of inertial force to viscous force.

Mass is called as transnational inertia of body.

According to Newton's laws of motion, an object with more mass requires more force to change the current state. Since, a cricket ball is heavier than a tennis ball, therefore, less force is required to start motion in tennis ball than in cricket ball.

Inertia is the resistance of any physical object to any change in its state of motion, including changes to its speed and direction. It is the tendency of objects to keep moving in a straight line at constant velocity.

The mass can be described as inertia of object which resist its changes in state of motion and rest. Hence correct answer is B.

The tendency of an object to resist changes in its state of motion varies with mass. 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.

Galileo Galilei first proposed the concept of inertia. Inertia is a property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force.

Factors on which inertia of a body depend are:
(1) Mass
(2) Axis of rotation

Mass of a body is the measure of its inertia i.e., more the mass, more is the inertia. Keeping this in mind:
Five rupees coin has more inertia.

A stone.
Inertia is associated with mass. Objects having more mass have more inertia.