NASA Launches Rover Perseverance to Mars

The video tutorial covers the transition to closed loop control in the Atlas 5 rocket, which is now supersonic. It discusses the vehicle passing through Max Q, the point of maximum dynamic pressure, and highlights the nominal performance of the SRB Chamber pressures and engine metrics. The Reaction Control System is pressurizing flight levels, and the engine is throttling to maintain a constant acceleration limit for payload fairing jettison.

What is the role of the Reaction Control system during flight?

Why is it important to maintain a constant 2 1/2 G acceleration limit?