Grade 11 Physics

Average speed: Bill and Amy want to ride their bikes from their neighborhood to school which is 14.4 kilometres away. It takes Amy 40 mins to arrive at school. Bill arrives 20 mins after Amy. How much faster(in meters/second) is Amy's average speed for the entire trip?

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asked by rose
  1. See previous post: Tue. 9-2-14, 6:17 PM.

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    posted by Henry

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