College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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A swimmer completes the first 50 m of the 100-m free style in 37.8 s. On reaching the far side of the pool, she turns around and swims back to the start in 42.2 s. The average speed of the swimmer is
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- Jack and Jill exercise in a 25.0 m long swimming pool. Jack swims 9 lengths of the pool in 136.1 s (2 min and 16.1 s), whereas Jill, the faster swimmer, covers 10 lengths in the same time interval. Find the average velocity and average speed of each swimmer. Jack's average velocity: m/s Jack's average speed: m/s Jill's average velocity: m/s Jill's average speed: m/sarrow_forwardThe record for a marathon is two hours, six minutes, 21 seconds. The marathon distance is 41.72 km. determine the average speed in m/s of a runner achieving this record.arrow_forwardA bike travels 6.53 x 103 m at 67.9 degrees North of East in a time of 2.56 x 103 seconds. The biker then has a drink for 1.23 x 103 seconds. She then rode a distance 6.05 x 103 m South in a time of 2.93 x 103 m seconds. She paused for 1.88 x 103 seconds, and it takes her back to her starting point. What was the magnitude of the average velocity of their entire ride?arrow_forward
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