depends, if that was the constant speed at all times uphill and downhill, and the times are both the same. then the average speed would be 15mph
The overall stopping distance would be around 122m (400ft) This is made up of a thinking distance of 24m (79ft) and an actual stopping distance of 98m (321ft). The thinking distance is around 3m for every 10mph of speed and the overall stopping distance is calculated as follows: 2x20 ft at 20mph 2.5x30 ft at 30mph 3x40 ft at 40mph 3.5x50 ft at 50mph 4x60 ft at 60mph 4.5x70 at 70mph 5x80 at 80mph = 400 ft james s
6 is 30 less than 6 times itself. Suppose the number is x. Then 6 times itself is 6x. 30 less than that is 6x - 30 So x = 6x-30 so that 5x = 30 and then x = 6
well i own one and they'll hit 20mph. but downhill i've hit like 40mph!
20mph
20mph
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It depends entirely upon the average speed of the journey. If the average speed is:1mph, it will take 511 hours;10mph, it will take 51 hours and 6 minutes;20mph, it will take 25 hours and 33 minutes;30mph, it will take 17 hours and 2 minutes;40mph, it will take 12 hours, 46 minutes and 30 seconds;50mph, it will take 10 hours, 13 minutes and 12 seconds;60mph, it will take 8 hours and 31 minutes;70mph, it will take 7 hours and 18 minutes.
Speed 10mph 20mph 30mph 40mph 50mph 60mph 70mph 80mph 90mph 100mph Time 0.8s 1.5s 2.7s 4.2s 6.1s 8.0s 10.9s 14.4s 18.6s 24.0s Distance 2.3m 8.3m 22.5m 49.1m 92.7m 141.2m 227.8m 341.4m 500.7m 736.8m
32.18688kmph
Depends on the grade, 20mph??I have been in tractor trailers going through PA and the speed of the truck over took the speed the motor/ no boost and the engine went silent. All you could he is the roar of the tires.
Final velocity minus starting velocity, divided by time it took. Ex. Speeding up you car from 40mph to 60 mph when going on to freeway. It took 2 seconds. 60mph - 20mph= 40mph/2sec =20mph 20mph is your acceleration.
For an NHL hockey player it averages around 20MPH. Speed skaters can reach 30MPH. Hi Reddit.
Speed = Distance/Time ex.: Distance - 50mi. Time - 2.5 hours 50mi. / 2.5hours = 20mph Speed - 20mph
By changing direction. Acceleration is a change in velocity. Since velocity takes direction into account, while speed does not, an object can having a changing velocity even while its speed remains the same. And while that object is changing its velocity by changing its direction, it is accelerating, regardless of its speed remaining constant. For example, if a car is driving north at constant speed of 20mph, its speed is 20mph, while its velocity is 20mph towards the north. At this point, the car is not accelerating. Now if the car turns a corner to head east while maintaining its speed of 20mph, its velocity is changing from 20mph northward to 20mph north-eastward and finally to 20mph eastward. As it is turning, it is accelerating. However, as soon as it stops turning, the car is no longer accelerating.