Is mass of an object is an absolute quantity. Explain with reason otherwise I'll report your answer............
Answers
Answer:
Basically "no". Mass and Energy are equivalent (see Mass–energy equivalence) but they are not the same thing. This is confusing because Mass in special relativity is defined as rest mass, or relativistic mass. Relativistic calculations involving mass, length and time have to be adjusted by the Lorentz factor γ=11−v2c2√ . Relativistic mass is given by Mrel=γM which implies that as Mrel→∞ as v→c
Everyone knows E=mc2 but that only gives the energy for a mass that is sitting still (i.e. rest mass, or just plain "mass"). Almost all of that energy comes from the Strong interaction (i.e. the binding energy) that holds subatomic particles together.
Mass in that is in motion also has momentum equal to its mass times velocity and that has to be taken into account for the total energy. The full form of the energy equation is E=(mc2)2+(pc)2−−−−−−−−−−−−√ where p is the momentum. But of course in this case momentum has to be calculated using the relativistic mass.
The increase in relativistic "mass" as velocity increases implies that the additional energy that would be required to accelerate the object's mass any further goes to ∞ as v→c .
All of that is mathematically true, but quite misleading. Mass and energy are equivalent. Even at about 0.999999991 c, or only 3 m/s less than the speed of light protons in the Large Hadron Collider are still tiny. The apparent 7,500 times increase in their mass is entirely due to their energy.
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