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
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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!
No, the force of impact is not directly proportional to the speed of the car. In a collision, the force of impact is determined by the change in momentum, which is a combination of speed and mass. Doubling the speed does not necessarily mean quadrupling the force of impact.
20mph
20mph
20mph
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
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.
32.18688kmph
For an NHL hockey player it averages around 20MPH. Speed skaters can reach 30MPH. Hi Reddit.
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.
Speed = Distance/Time ex.: Distance - 50mi. Time - 2.5 hours 50mi. / 2.5hours = 20mph Speed - 20mph
15-20mph