How can you prove that acceleration is a derived unit​

a = (dx / dt)²

Explanation:  Unit of distance is m (metres) and unit of time is s (seconds) speed v is  first derivative of distance x versus time:

  v = dx / dt, unit is m/s.    Acceleration is second derivative of

 speed versus time  a = (dx / dt)² = (dv/dt) , unit is m/s²

Explanation:

Acceleration is derived unit because it has two fundamental units involved i.e. meter and second square.

0.11 m/s and 0.28 m/s should be correct

i think the answer is a, hope this : )