Question

according to the theory of relativity mass of a body .is​

Answer 1

Answer:

Relativistic mass, in the special theory of relativity, the mass that is assigned to a body in motion. ... The relativistic mass m becomes infinite as the velocity of the body approaches the speed of light, so, even if large momentum and energy are arbitrarily supplied to a body, its velocity always remains less than c.

Answer 2

Answer:

The relativistic mass is given by m = γ × m₀.

Explanation:

The special theory of relativity:

• Relativity is the study of the mechanics of a particle in a more general manner compared to Newtonian or classical mechanics.
• In this theory the speed of light is constant, and time can vary from place to place.
• The laws of physics are the same and can be stated in their simplest form in all inertial frames.

Now a body that is in motion will be having a different mass compared to the same body which is at rest. This is explained by using the special theory of relativity.

The relation between the relativistic mass(m) and the rest mass(m₀) of a body are given by:

m = γ × m₀

Where $\gamma = \frac{1}{\sqrt{1 - \frac{v^2}{c^2} } }$

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