Acyclist racing in the keiran is riding at the top of the track at 5m/s. then he sprints downhill in the sprinting to the finish in 1.75s. his acceleration was 9m/s^2. what was his ending velocity at the finish line?

The cyclist is moving by uniformly accelerated motion, with an initial velocity of  and an acceleration of . 
The acceleration is given by

where  is the final velocity and  is the time between the end and the beginning of the motion, and in our case it is 1.75 s. Therefore, from this relationship we can find the final velocity: