As we know the moving object appears to be contracted with the earth aur rest frame that’s because of Lorentz contraction known as length contraction which is given by

Where , V is velocity of moving object and C is speed of light in vacuum i.e.

And is length at rest .

As volume always include power of 3 weather it is cube sphere we will take a simple case of cube where all of its length is given by at rest

Volume at rest is =

ATQ Volume seems to be half at certain speed

And