Takes a Force attack to the chest that had the force of a small explosion

"You can teach me nothing," Darth Vader's leaden voice intoned. One black glove clenched, and for a moment the apprentice's throat closed tight. He beat back the telekinetic attack with one of his own, shoving his Master in the chest with the force of a small explosion, throwing Darth Vader backward across the room.

The Force Unleashed I, Chapter 38, Page 440