Question

Unit of acceleration is a) ms-1 b) ms-2 c) ms d) ms2

Answer 1

acceleration is the rate of change of velocity. in simple way you can say that acceleration is the ratio of change in velocity to time taken.
e.g., acceleration = (final velocity - intial velocity)/time taken

we know, unit of velocity = m/s
unit of time = sec
So, unit of acceleration = unit of velocity/unit of time
= m/s/s = m/s²
therefore, unit of acceleration = m/s²
hence, option (b) is correct.