Final answer:
The passing speed limit when safe to pass near streetcars, trolleys, or buses is typically set by local laws, with a common speed limit being 10 mph to ensure the safety of passengers. This value can vary, and it is important to consult local traffic regulations.
Step-by-step explanation:
The question relates to the passing speed limit when it is safe to pass near streetcars, trolleys, or buses. The answer varies by jurisdiction, but typically, there are specific speed limits set by local traffic laws that drivers must adhere to when passing these types of vehicles. It is not stated in the provided information, and local laws should always be consulted. However, a commonly seen speed limit for passing stationary school buses or trolleys across various states in the U.S. is 10 mph. This is slower than typical driving speeds to ensure the safety of passengers boarding or alighting.
For example, making connections to related concepts, the speed limit on some interstate highways is roughly 80 km/h, which is about 22.2 m/s or 49.7 mi/h (correcting the options provided in one of the referenced questions).