a train moving at a constant velocity of 54km/h moves easteards for 30minutes, then due north with the same speed for 40 min. What is avg velocity?
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54 km/ h = 15m/s
average velocity = toatal displacement /time
= 15*30 + 15*40/30+40
= 450+600/70 = 1050/70
= 15 m/s.
average velocity = toatal displacement /time
= 15*30 + 15*40/30+40
= 450+600/70 = 1050/70
= 15 m/s.
harsh3374chauhan:
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