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How more speed is gained in planes?
Airplanes fly faster than cars travel. Usually big commercial planes travel over 550 miles an hour, so that is 10X what your car usually travels. Airplanes also have the advantage of going in straight lines and crossing oceans and mountain ranges.
How many miles per hour is 1 mile in 54 seconds?
1 miles in 54 seconds is slightly faster than 60 mph
Is x kilometers per hour faster than x miles per hour?
No, x kilometers per hour and x miles per hour are equal speeds. The conversion factor between kilometers and miles is 1.60934, so when converting from kilometers to miles, the number decreases but the speed remains the same.
If you run 100 meter race in 6.130 seconds how fast are you going in miles per hour?
You have averaged 36.5 miles per hour. You are probably going quite a bit faster than that at the end.
How many hours will a car traveling at 45 miles per hour take to catch up with a car traveling at 30 miles per hour if the slower car starts one hour before the faster car?
After 1 hour the slower car will be 30 mph x 1 hour = 30 miles ahead of the faster car. The faster car is travelling 45 mph - 30 mph = 15 mph faster than the slower car and so will cover this 30 miles in 30 miles ÷ 15 mph = 2 hours at which point it will have caught the slower car and start to over take it.
