-10 mph per second
Her average speed and average velocity were the same but were less than 70mph
about 34-37mph
70mph
It is a measurement of speed.
http://www.wolframalpha.com/input/?i=200+miles+at+70mph
34 miles driving at 70mph requires 29.1 minutes.
Velocity = Distance ÷ Time : therefore Time = Distance ÷ Velocity. If the average speed is 50mph then Time = 550 ÷ 50 = 11 hours. If the average speed is 70mph then Time = 550 ÷ 70 = 7.86 hours (7 hours 52 minutes approximately)
Velocity = Distance ÷ Time : therefore, Time = Distance ÷ Velocity. Time of journey = 197 ÷ 70 = 2.8143 hours = 2 hours 49 minutes (approx)
Speed is the rate at which an object moves, while acceleration is the rate at which the speed of an object changes. Speed is a scalar quantity (has magnitude only), while acceleration is a vector quantity (has magnitude and direction).
70mph
To work this out divide 65 by 70.It would take about 56 minutes to drive.
70mph stock