What laws of motion were in effect during the Apollo 11 mission?

During the Apollo 11 mission, Newton's three laws of motion were in effect. The first law (inertia) applied as the spacecraft continued moving through space unless acted upon by an external force. The second law (F=ma) was crucial for calculating the thrust required for maneuvers, such as launching and landing. The third law (action-reaction) was evident when the rocket engines expelled gas downward, propelling the spacecraft upward.