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6.Usha swims in a 90 m long pool.she covers 180m in one minute by swimming from one end to other and back along the same straight path.find average speed and average velocity of usha

Answer» 6.Usha swims in a 90 m long pool.she covers 180m in one minute by swimming from one end to other and back along the same straight path.find average speed and average velocity of usha


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