Why Newtonian mechanics doesn't work at velocities close to that of the speed of light? I...

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Physics

Why Newtonian mechanics doesn't work at velocitiesclose to that of the speed of light? I know that mass tends tobecome infinite at v=c but why does it fail if v is close to c butnot exactly c?

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At velocities that are much higher than what we expect in oureveryday life the classical laws given by Newton are replaced bythe laws of special relativity given by Albert Einstein As anobject moves at high speeds its kinetic energy is added as massand thus the mass of the moving body tends to increase withincreasing velocity The relation of mass and velocity is givenaswheremv is    See Answer
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