- A40 s
- B80 s
- C100 s
- D60 s
Step-by-Step Solution
First meeting: together they cover 50 m → 20 s. Before the second meeting they cover a further m → 40 s more. Total 60 s.
Answer: D) 60 s
In a 50 m pool, two swimmers start at the same moment from opposite ends at 1.5 m/s and 1 m/s, turning instantly at the walls. After how long do they meet for the second time?
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