Usha swims in a 90 m long pool. She covers 180 m in 1 minute by swimming from one end to the end ..
Автор: Learn and Teach NCERT CBSE
Загружено: 2020-09-18
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Описание: Example 8.3(Motion Chapter 8 CBSE NCERT)Usha swims in a 90 m long pool. She covers 180 m in 1 minute by swimming from one end to the other and back along the same straight path. Find the average speed and average velocity of Usha.
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