What is the average velocity of a car starting with a velocity 2 m/s and ends with 25 km/hour ?
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20 km/hr
So after the car has moved 40 km [East] and then 80 km [West], its resultant displacement is 40 km [West]. So the average velocity of the car is 40 km [West] 2 hrs = 20 km/hr [West]. The term acceleration refers to how fast an object's velocity is changing.
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