Need more info. Does just the engine run rough or does the steering shake or does the whole vehicle shake betwen 50 and 55 mph?
Normally this is caused by a tire out of balance or a bent wheel.
The symptom would indicate a wheel/tire/balance problem. You need to have a professional inspect if you are driving at those speeds. also make sure if you drive at 120+ mph, you have "Z" rated tires for safety.
It would be highly unlikely.
My guess would be wheel balance.
About 638 mph
i would really like to know myself
It depends on the speed you are going. For instance, if you are going 4 mph, it would take 1 hour to go 4 miles. If you were going 8 mph, it would take 30 minutes to go 4 miles. If you were going 16 mph, it would take 15 minutes to go 4 miles.
About 15 minutes Depending on how fast your going, it takes about 15 minutes if your going around 40 mph the whole way without stopping!
If it happens when you are driving fast (60-70 MPH) it could be that your wheels are out of alignment.
Can be a bent wheel, tire out of balance, or worn suspension parts.
It depends. If you were going about 50 mph the whole way, it would take 19 hours. To determine how long it would take, divide 950 by your average speed.
It depends. If you were going 40 MPH (which seems reasonable), it would take 20 hours. If you were going 80 MPH, it would take 10 hours.
usually the motion of your frame of reference is 0. When you are in a train going 50 mph, your frame of reference would be you are going 0 mph and the tracks are traveling at -50 mph.
177.273 mph (rounded)
At 60 mph, it will take one hour.
One or more tire out of balance, a bent wheel, or defect in a tire.
you would be going approx.967 mph if you were walking or running 3 miles an hour
it would be doing 85mph
Tire our of balance or bent wheel. Have your tires rotated and balanced.
it would be somewere around 200$ or more =]
Put it this way... Would you rather get hit with a car going 70 MPH, or a car going 5 MPH?
Not likely. Normally this is caused by a tire out of balance or a bent wheel.