On the question that someone posted.....I asked my teacher on what formula I should use and said I should use this one: V^2= Vo^2+2ax (V^2 is the velocit, Vo is the initial velocity, a is accerlation and x distance

. An automobile is traveling at 30 km/hr. It accelerates at 3 m/s2 until it has covered 100 meters.. What is its new velocity?

V^2= (8.3 m/s)^2+2(3m/s^2)(100 m)=668.90 m/s

When I work the formula I get the answer 1868.89
What am I doing wrong

Vo = 30000m/3600s. = 8.33 m/s.

V^2 = Vo^2 + 2a*d = 8.33^2 + 2*3*100 =
69.44 + 600 = 669.44.
V = Sqrt(669.44) = 25.87 m/s.