A spaceship of triangular shape, having a width three times its height, is capable of relativistic speeds. How fast would it have to move so that, to a

$1\mathrm{.}25$ pts

stationary observer, its width would equal its height? Assume that, according to the stationary observer, the triangular shape is moving in a direction parallel to its height.

$0\mathrm{.}333$c

$0\mathrm{.}816$c

$.0\mathrm{.}943$c

$0\mathrm{.}650$c

$$This is not possible.