Question

Which of the following is a unit for acceleration?

A) m/s

B) m/s2

C) s/m 2

D) s/m

Answer 1

Acceleration by definition is the change in velocity per change in unit of time.
That is Δv/Δt

Velocity is in meters per second, time is in seconds. When you actually calculate acceleration, you get (m/s)/(s). You could move the s in the velocity to the bottom or cross multiply, but in the end you get m/s^2

Answer B