The first hit was tentative. I imagine the guy was nervous about whether he might dent it. The second hit was a hard smack with full body weight behind it. I

The first hit was tentative. I imagine the guy was nervous about whether he might dent it. The second hit was a hard smack with full body weight behind it. I suspose he felt more confident after Elon asked him to hit it harder. See https://www.youtube.com/watch?v=SwvDOdBHYBw https://www.youtube.com/watch?v=SwvDOdBHYBw starting at 3:14.