Final answer:
The maximum speed of a Space Shuttle during climb is needed to reach orbital velocity, approximately 28,000 km/h, while during descent it re-enters the atmosphere at a similar speed and slows down to around 350 km/h for landing.
Step-by-step explanation:
The question asks about the maximum speed during a Space Shuttle climb or descent. While specific speeds can vary based on the mission profile and model of the Shuttle, some general insights can be offered. As the Space Shuttle accelerates to achieve orbit, it reaches a final velocity greater than an ICBM, indicating speeds are substantially high. However, typical Shuttle ascent speeds could reach up to around 28,000 km/h (17,500 mph) to achieve orbital velocity. Comparatively, during descent, the orbiter would re-enter the Earth's atmosphere at speeds close to 28,000 km/h and slow down to approximately 350 km/h when the parachute deploys to land. These speeds are far above those experienced in other rapid acceleration contexts mentioned, such as skydiving or ejections from aircraft.