An object with a nonzero rest mass moving at the speed of light would have
A) no momentum.
B) time pass at an infinitely fast rate.
C) infinite volume.
D) infinite apparent mass.

Question

Quizplus · Accepted Answer

Objects with nonzero rest mass cannot reach the speed of light within the framework of relativity. However, theoretically, as an object with mass approaches the speed of light, its relativistic mass increases without bound, appearing to become infinite.

An Object with a Nonzero Rest Mass Moving at the Speed