Michael is biking on a trail and is accelerating at a rate of 1.2 m/s/s for 15 seconds.

Michael's final velocity is 19.62 m/s.    

Explanation:            

We can find the final velocity of Michael by using the following kinematic equation:

  (1)    

Where:

: is the final velocity =?

: is the initial velocity = 1.62 m/s

a: is the acceleration = 1.2 m/s²

t: is the time = 15 s

By entering the above values into equation (1) we have:

Therefore, Michael's final velocity is 19.62 m/s.

I hope it helps you!