Wheels need balancing, alignment could be off, wheel bearings, bent rim. Probably just needs wheels balanced.
You've had too much to drink...
55 mph (!)
A car going 55 mph is traveling at about 80.667 feet per second.
Yes, but any faster and you'll eventually hit the car in front of you?
55 mph. If the car stops (impact) people inside are still moving at 55 mph. They will hit the inside of the car- at 55 mph. That has the same effect as if you were standing still, and were hit by a car moving 55 mph. Messy. Wear your seatbelt.
Stopping Distance = about 206.25 feet at 55 mph
55 miles
Turkeys are not capable of traveling at speeds of 55 mph. The maximum running speed of a turkey is around 20-25 mph.
three car spaces
55 x 2.5 = 137.5
Answer: 55 mph = 88.5139 km/h
At about 1700 RPM's you're going 55.