a body takes 2 hours to move from A to B and 3 hours to come back . the distance between A and B is 200 km.find its average speed and average velocity.
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avg velocity is zero since total displacement=0
avg speed = total dist/total time=200+200/2+3
=400/5
=80km/hr
avg speed = total dist/total time=200+200/2+3
=400/5
=80km/hr
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