A car accelerated uniformly at 2.5 meters per second square starting from a velocity of 10 meters per second square calculate the final velocity

2 answers

I don't know that ls why I ask
since acceleration is the rate of change of speed,
v changes by 2.5 m/s every second. That means that after t seconds,
v = 10 + 2.5t
since you did not say how long this went on, only you can provide the "final" velocity

Looks like you need to review velocity and acceleration
look at the units
a = m/s^2
so,
v = a*t = m/s^2 * s = m/s