A car travels from stop a to stopb with a speed of 30 km/h and then returns back to a with a speed of 50km/h . find displacement of a car, distance travell by car and average speed of the car
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Displacement =0 [Bcoz, it returns to the initial point]
Average speed = (30+50)/2 = 40km/h
Average speed = (30+50)/2 = 40km/h
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