If a bicycle has an average acceleration of -0.44 m/s^2, and its initial forward velocity is 8.2 m/s, how long will it take the cyclist to bring the bicycle to a complete stop

The value is  

Explanation:

From the question we are told that

     The average acceleration of the bicycle is

      The initial forward velocity is  

Generally from kinematic equations we have that

Here v is the final velocity of the bicycle and the value is v = 0 m/s

So

=>    t = 18.6 s

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