well you cant move faster than C can you?

At high speeds since v^2/c^2 is a number only slightly smaller than one, 1-(v^2/c^2) would equal a very small number, like 0.000000000000067
The square root of that is slightly larger (but still a small number). 1/the square root of 0.000000000000067 would equal a very large number, and therefore when you multiply the object's mass by that number the mass increases a lot.


you get very heavy man

it all makes perfek sense..