A motor cyclist goes from station A To B at 40km/h-¹ and then returns from b toA at 120km/h-¹ calculate the average velocity and average speed during round trip
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avg velocity = 0 ( since displacement=0)
avg speed = total dist/total time
= 2x / [x/40 + x/120]
=60 km/hr (assume AB = x)
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