Final answer:
The legal minimum speed on the Mass Pike is not provided, but drivers are expected to maintain a safe and reasonable speed. Minimum speed signs may be posted, but it is important to consult local state laws or transportation departments for accurate information.
Step-by-step explanation:
The legal minimum speed on the Massachusetts Turnpike (Mass Pike) is not specified in the provided context. However, it is important to know that on many highways, including the Mass Pike, minimum speed signs may be posted. When no specific minimum speed is posted, drivers are generally expected to maintain a speed that is safe and reasonable for the conditions, but not so slow as to impede the normal and reasonable movement of traffic.
In the scenario provided, Peter encountered a driver going at a minimum speed in a city's business district, not specifically the Mass Pike. It's crucial to follow both the minimum and maximum speed limit regulations, which are established to maximize safety for all road users.
For specific questions about the Mass Pike or any other roadway, it is advisable to consult the local state laws or transportation department for the most accurate information. Remember, driving significantly below the speed limit can sometimes be just as dangerous as speeding, as it may cause unexpected situations for other drivers.