I understand the impracticalities of this concept, but humor the 'what-ifs.'
Ignoring physical obstacles and the effects of atmospheric fluctuations affecting the trajectory.
Say it is possible to have a craft capable of orbiting in Earth's atmosphere just above sea level, that in no way generates lift (just powering through that atmosphere).
How would gravity be perceived by the passenger onboard? On one hand I think they'd be weightless since they are technically always falling... But I could be wrong.
Bonus: How fast would a 200 kg spherical (I guess) vessel be traveling?