This is what it looks like to catapult from the Electromagnetic Aircraft Launching System

Huntington Ingalls Industries attached a GoPro camera to a weighted sled during a media event on board Pre-Commissioning Unit Gerald R. Ford (CVN 78) to observe the testing of the Electromagnetic Aircraft Launching System (EMALS) on Jun. 16.
Ship’s sponsor Susan Ford Bales was given the honor to fire the catapult.

Source: This is what it looks like to catapult from the Electromagnetic Aircraft Launching System