Speed is a calculation of distance over time.
So, if we divide our distance, by our time, we will get speed.
So

The speed is 5 meters per second
or 5 m/s (Just a different way of expressing the units)
Answer:
k = 5
Step-by-step explanation:

Now comparing left hand side & right hand side ,

Cancelling x^2 & 6 from both left hand side & right hand side ,
kx = 5x
=> k = 5
A = 6(1/3)²
A = 6(1/9)
A = 6/9 or 2/3
Hope this helps :)