40 km per hour.
20 x 2 because that is in a half hour.
It's 25 miles per half-hour, and it's also 50 miles per hour.
Just divide the 120km by the 1.5 hours for an average speed of 80kph.
Just divide distance by time to get speed.30 miles / 1.5 hrs = 20 MPH
Average speed is 65 mph.
50mph x 3.5 hours = 175 miles.
40km per hour
Average speed is distance over time, so (25 + 35)/(.5 + 1.5) = 60/2 = 30 km/hr
It's 25 miles per half-hour, and it's also 50 miles per hour.
No. Light travels at about 875 thousand times the speed of sound.
No.
Speed = 85/2.5 = 34 mph
20 km/h
2 in a half
Average speed = distance / timedistance = 10 kmtime = 1.5 hoursAverage speed = 10 km / 1.5 hours = 6.67 km/hoursor1 mile = 1.60934 km6.67 km/hr = 4.14 miles/hrBecause we do not know if the speed of the bicyclist was constant or not, we can only give the average speed of this cyclist.
80 kph
No
Speed is a momentary measurement. Average speed is the distance travelled in a particular journey divided by the time taken to make that journey.If a vehicle travels forty kilometres in one hour, its average speed is 40 km h-1 (kph). That doesn't necessarily mean that the vehicle was doing exactly 40 kph for the whole hour, its speed may have varied between 0 kph and 100 kph.Example: If a man walks 1.5 km in 15 minutes, his average speed is 6 kph. (1.5 / 0.25 = 6) If a man travels 15 km in 2 hours, his average speed is 15 / 2 = 7.5 kph. (Of course, he may have jogged at 10 kph for one and a half hours and stopped for a thirty minute picnic in the middle)