It feels faster than 15 mph and slower than 25 mph.
The wind chill for 20 mph at 10 degrees Fahrenheit would make it feel like it's around -10 degrees Fahrenheit.
20 mph = about 17.4 knots
1 knot is about 1.15 mph 20 knots = 23 mph you may try this online converter next time http://www.rillocenter.com/convert/speed.html
There is no such thing as 20 mph acceleration. 20 mph is a velocity. Acceleration is expressed as velocity per unit time e.g. mph per second or mph per minute etc.
MPH (miles per hour) is a measure of speed. 20 mph means you will travel 20 miles each hour at that speed.
20 km/h is 12.4274 mph
2.33 miles in 20 minutes at 7.0 mph
20 MPH would be colder, as the increased speed increased heat transfer away from the moving object.
Mach 20 is 20 times the speed of sound, which is approximately 767 mph at sea level and room temperature. Therefore, Mach 20 would be 20 x 767 mph, which equals 15,340 mph. This speed is extremely fast and is typically associated with hypersonic flight and reentry vehicles.
20
It will take 20 min to go 20 miles at 60 mph.
a = (vf - v0)/Δt 10 mph/s = (45 mph - 20 mph)/Δt Δt = 2.5 s