An object moving at 400 mph is traveling at: 586.7 feet per second.
At 90 km/h an object is moving at about 82.021 feet per second.
19.66976 metres per second38.23495 knots70.81114 kilometres a hour=]
It's not hard at all. For every foot-per-second you travel, you are moving at about 0.681 miles per hour. So use this formula to convert fps to mph:fps x 0.681 = mph
It is moving at 264 feet per minute.
There is no such thing as 'scalar velocity'. Velocity is a vector, always. A quantity that tells how fast an object is moving but doesn't tell in which direction it's moving is a scalar. That quantity is called "speed". Three examples are: -- Driving 30 miles per hour. -- Running 8 miles per hour. -- Sliding 15 feet per second.
An object moving at 71 miles per hour travels 104.1 feet per second.
At 30 mph, an object is moving at about 44 feet every second.
"Per second per second" is a measurement of acceleration. If an object (such as a car) is moving, its speed can be measured in terms of miles per hour, or feet per second (which work out to be a similar figure to miles per hour). If the car is accelerating, the acceleration can be measured in terms of additional speed (feet per second) that is acquired in a given second, therefore, feet per second per second. Get it?
At 90 km/h an object is moving at about 82.021 feet per second.
You would be moving at a rate of 0.12944444 miles per second whish is equivalent to 654.133333 Feet per second.
3,280.8399 feet = 0.621371193 miles
The speed is 4.1 miles per hour.
At 200 mph, the train is moving at 293.3 feet per second.
If an object is moving 18 feet in 2 seconds, then it is moving 64,800 (18 times 60 times 60) feet in one hour. That is 12.3(64,800 divided by 5,280) miles per hour.
There is no definite speed for free falling. If an object is released somewhere above the earth, the speed is changing every single moment. It is never the same speed it was before at any time; only until an object releases terminal velocity where it is moving at a constant speed. This is different for every object. The acceleration due to the gravity of the earth is 32 feet/second^2. This means that for every second that passes, an object is moving 32 feet/second faster than it was the second before.
150 seconds or 2 and 1/2 minutes
If an object travels at a speed of 2.3 feet per second, it is also traveling at a speed of 8,280 feet per hour. (2.3 feet per second times 60 seconds per minute times 60 minutes per hour) If an object travels at a speed of 8,280 feet per hour, it is also traveling at a speed of 1.568 miles per hour. (8,280 feet per hour divided by 5,280 feet per mile)