Americans with Disabilities Act (ADA) The ADA prohibits discrimination on the basis of disability in employment, State and local government, public accommodations, commercial facilities, transportation, and telecommunications. It also applies to the United States Congress.
This really depends upon the manufacturer and model of your scooter, but a 150 cc scooter will generally top out at about 60-65 mph. The cheaper Chinese models will only do about 50-55 mph, while good Hondas will go up to 65 mph. I had an 86 Honda Elite 150 scooter, and it would do about 63 mph with me on it.
What size engine can go 5MPH, all engines on bikes and scooters can do that. I have a 49cc scooter that could only do 33 MPH maximum, but my state MVB says that the most I'm allowed to go is 30 MPH. This is because the manufacturer does things to the engine to restrict its output.