Trophy Description(s) -

1. Travel at incredible speed
2. Travel to an incredible height

Trophy Type(s) - Bronze

In order to unlock both of these trophies you will need to use a community level, this is because it is almost impossible to unlock them on a story level. You will need to use rockets for both of these trophies. In order to get the height trophy you will need to use the rocket to reach the top, from there you will just need to drop, during the process you will unlock the trophy if not you will have it when you land.
It's almost the same for the speed trophy, you will just need to use the rocket and once you come to a stop you should have the trophy.