The first one is
It takes 40sec for a car at rest to reach a velocity of 50 m/s. What is the car's initial velocity?
a. 0 m/s
b. 1.25 m/s
c. 1.25 m/s2
d. 50 m/s
e. 50 m/s2
I think the equation is a=v(final)-v(intial)/t
but it can't be because doesn't a(acceleration)= m/s2?
so there...