A car has an acceleration of 2 m/s2. What is its speed 3 seconds after it starts moving?

Answer 1

v=u+at
v=final velocity,
u=initial velocity
a=acceleration
t=time

u=0 (initially at rest)
a=2 m s^-2
t=3 s
final velocity = 0+2*3 = 6 m s^-1