depends on the boat 8.7
depends on how fast the people go
110
As fast as the wind can carry it.
Depends on how fast the boat is.
Answer now.
60 mph
First, it needs to be mounted on the boat. And the boat determines how fast the attached motor will go. If the boat is wood, then it will likely float deeper in the water, and not be particularly fast. If the boat is a smaller fiberglas one, then the motor and boat will go faster. Based on much boating experience, I would say that most boats could go 30 to 35 mph with the 40hp Merc.
1 million miles an hour
10 mph
150MLP
Well, it has around 200hp, but it's a heavy car at 3400 pounds, so not very fast at all.