A bicyclist is finishing his repair of a flat tire when a friend rides by with...

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A bicyclist is finishing his repair of a flat tire when a friend rides by with...

A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.1 m/s . Two seconds later the bicyclist hops on his bike and accelerates at 2.4 m/s2 until he catches his friend.

a) How much time does it take until he catches his friend (after his friend passes him)?

Express your answer using two significant figures.

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