Why doesn't great mass automatically equal great inertia?

Expert Solution

Hi buddy!

Mass is divided into three different types as inertial mass, active gravitational mass and passive gravitational mass.

mass can be measured in kilograms. Whereas weight is measured in Newton. In theory of relativity, there are two types of mass defined as rest mass and relativistic mass.Inertia of a system tells us how hard it is to change the current state of the system. The higher the inertia of a system harder it is to change the velocity, acceleration or direction of the system. Thus it is safe to say that objects having higher masses have higher inertia.

Jumping straight to the answer,

An object which is at rest can be considered as an object having zero velocity. In relativity, the inertia of an object tends to be infinity when the speed of the object reaches the speed of light. Thus an infinite force is required to increase the current velocity. Also, It can be proved that no mass can reach the speed of light. This might be why mass cannot equal inertia.

genius_generous answered 7 months ago

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