a car travels first 70 KM with the speed of 70 km h and next 20 km with the speed of 106 km/h. find its average speed.
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Step-by-step explanation:
During first hour, speed = 160kmph=60kmph
During second hour, speed = 170kmph=70kmph
During third hour, speed = 120kmph=20kmph
So, the car travels different distances in equal time intervals.This is an example of non-uniform motion.
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