Uploaded December 2022 | Updated September 2026, 3 weeks ago
Rocket thrust does not require an atmosphere to push against. Expelling mass at high velocity produces an equal and opposite change in the rocket’s momentum under Newton’s third law. This video also examines confusion about vacuum-chamber demonstrations and explains why pressure, mass flow, and momentum—not outside air—determine rocket thrust.
Rocket thrust does not require an atmosphere to push against. Expelling mass at high velocity produces an equal and opposite change in the rocket’s momentum under Newton’s third law. This video also examines confusion about vacuum-chamber demonstrations and explains why pressure, mass flow, and momentum—not outside air—determine rocket thrust.
