Finding Time, given velocity and acceleration

AI Thread Summary
The discussion revolves around a physics problem involving a bicyclist who accelerates to catch up with a friend riding at a constant speed. The key points include the need to use distance formulas since both the bicyclist and the friend cover the same distance. It is emphasized to account for the two-second delay before the bicyclist starts moving. Participants suggest using different time variables for the two scenarios, specifically t for the friend and t-2 for the bicyclist. The conversation highlights the importance of correctly applying kinematic equations to solve the problem.
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Homework Statement



A bicyclist is finishing his repair of a flat tire when a friend rides by with a constant speed of 3.9 m/s. Two seconds later the bicyclist hops on his bike and accelerates at 2.0 m/s^{2} until he catches his friend.

Homework Equations



V=V0+At

The Attempt at a Solution



Well I could put the numbers in the equation but I know its wrong anyways. Not sure how to get this problem going.
 
Last edited:
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You need distance formulas because the distance traveled is the same in both cases.
Don't forget to account for the 2 second delay. You might want to put t in one formula and t-2 in the other.
 

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