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Two ice skaters, with masses of 40 kg and 85 kg, are at the center of...

Two ice skaters, with masses of 40 kg and 85 kg, are at the center of a 60 m -diameter circular rink. The skaters push off against each other and glide to opposite edges of the rink.

If the heavier skater reaches the edge in 40 s, how long does the lighter skater take to reach the edge?

Express your answer in seconds.

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