How do you calculate linear velocity?

Question

I need to be able to describe how to calculate but do not need to do it.

Answer 1

Acceleration(Constant)

y=y(initial)+1/2at^2

v=v(initial)+at

v(final)^2=v(initial)^2+2ax

a(avg)=change in velocity/change in time

a(instantaneous)=dV/dt

You'll be fine knowing those three and manipulating them around.

Velocity

v=x/t

v(average)=change in position/change in time

v(instantaneous)=da/dt

And the equations above.

Answer 2

velocity = distance/time

Girl above is correct with -ve/+ve directions