In other words, the matter traveled at 20% the speed of light.

This supermassive black hole flung out matter at 134 million mph: 'On a scale almost too big to imagine'

Source: space
Source Link: https://www.space.com/astronomy/black-holes/this-supermassive-black-hole-flung-out-matter-at-134-million-mph-on-a-scale-almost-too-big-to-imagine