Final answer:
The original question seems to confuse the taxi speed limit of an A320 aircraft with safety concerns for water taxis based on weight. These are separate issues, with the former guided by aircraft operating manuals and airport regulations, and the latter by the water vessel's safety limits.
Step-by-step explanation:
The question appears to be about the operational limits for an A320 aircraft, but the reference provided discusses a safety concern related to water taxis and the collective weight of passengers. This seems to be a mix-up as these are unrelated topics. The taxi speed limit of an aircraft is typically determined by the aircraft's operating manual and airports regulations, taking into account safety concerns related to the weight of the aircraft and the quality of the taxiways. In contrast, for water taxis, a safety concern arises if the total weight exceed the safety limits established for the vessel, which could lead to overloading and potential capsizing.
In physics, the taxi speed in a turn for an A320 aircraft is limited by the aircraft's weight. If an A320 weighs more than 167,550 lbs (75,000 kg), the taxi speed is limited to 20 knots (23 mph or 37 km/h) or less during turns. This limitation is due to the increased inertia and potential loss of control when the aircraft is heavier. It is important to follow these limitations to ensure safe taxi operations.