If a bird moves with an initial velocity of 30secs and accelerates at the rate of 40m/s to cover a distance of 70km/hrs.Calculate the final velocity of the bird?

30 sec is not a velocity, 40 m/s is not an acceleration rate, and 70 km/hr is not a distance.

You need to be more careful copying problems. Physics problems that don't make sense do not have answers.