Usually there is only one comparison of two variables in calculating a speed.
distance in miles and time in hours. both are scalers.
'Velocity' should be compared with 'speed', and it should be understood that they're different. "30 miles per hour" is a speed. "30 miles per hour toward the south" is a velocity.
Distance and time.
The question makes no sense. It seems as if you are confused about what miles per hour is. It just means how many miles you travel in one hour. So 11 miles per hour would be ... 11 miles per hour, or 11 mph.
No.
Nothing compared to the risk of not wearing one. (In theory, you may be trapped in the car. However, all research shows that this is negligble a danger compared with being thrown through the windshield at 30 miles per hour.)
Usain Bolt is the fastest recorded human being on foot at 27.44 miles per hour.
Pandas are not known for their speed, as they can run at a maximum speed of about 20 miles per hour. This is slower compared to many other animals in the wild, such as cheetahs, which can reach speeds of up to 60-70 miles per hour.
Miles per hour are used when on land and knots are used by ships and boats
90 miles per hour or faster then a human being faster then a car 90 MILES PER HOUR well why dose it matter
Jupiter, despite being the biggest planet, has the shortest day. It takes Jupiter less than 10 hours to rotate around its axis once. Jupiter rotates at a speed of over 28,000 miles per hour, compared to Earth rotating at just over 1,000 miles per hour (at the equator).
80 minutes. Everything being equal. 1 hour traveled 40miles 40 more would get to another hour, but you are only 20 miles away from reaching 60 miles. 60 miles - 40 miles traveled (1 hr.) ___________________ 20 miles to travel 1.5 hours to destination