- A100 s
- B500 s
- C250 s
- D50 s
Step-by-Step Solution
Opposite directions: relative speed m/s. Together they cover one lap: s. (500 s uses the difference of speeds.)
Answer: A) 100 s
Two friends start from the same point of a 500 m circular track and walk in opposite directions at 2 m/s and 3 m/s. After how many seconds do they first meet?
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