Question

Why massive body can't travel faster then Light ?

Answer 1

According to Einstein's (mass energy equivalence ) whenever an object moved faster or in the speed of light his mass gets convert to energy so if a massive body will move that speed so it would get converted into energy (E=mc2)
hope it helps you out of

Answer 2

A̳c̳c̳o̳r̳d̳i̳n̳g̳ t̳o̳ E̳i̳n̳s̳t̳e̳i̳n̳'̳s̳ (̳m̳a̳s̳s̳ e̳n̳e̳r̳g̳y̳ e̳q̳u̳i̳v̳a̳l̳e̳n̳c̳e̳ )̳ w̳h̳e̳n̳e̳v̳e̳r̳ a̳n̳ o̳b̳j̳e̳c̳t̳ m̳o̳v̳e̳d̳ f̳a̳s̳t̳e̳r̳ o̳r̳ i̳n̳ t̳h̳e̳ s̳p̳e̳e̳d̳ o̳f̳ l̳i̳g̳h̳t̳ h̳i̳s̳ m̳a̳s̳s̳ g̳e̳t̳s̳ c̳o̳n̳v̳e̳r̳t̳ t̳o̳ e̳n̳e̳r̳g̳y̳ s̳o̳ i̳f̳ a̳ m̳a̳s̳s̳i̳v̳e̳ b̳o̳d̳y̳ w̳i̳l̳l̳ m̳o̳v̳e̳ t̳h̳a̳t̳ s̳p̳e̳e̳d̳ s̳o̳ i̳t̳ w̳o̳u̳l̳d̳ g̳e̳t̳ c̳o̳n̳v̳e̳r̳t̳e̳d̳ i̳n̳t̳o̳ e̳n̳e̳r̳g̳y̳ (̳E̳=̳m̳c̳2̳)̳ 
h̳o̳p̳e̳ i̳t̳ h̳e̳l̳p̳s̳ y̳o̳u̳ o̳u̳t̳ o̳f̳