Q.No.72: - What are the units and dimension of velocity? Is the direction of acceleration depends upon the direction of velocity or not?

Q.No.72: - What are the units and dimension of velocity? Is the direction of acceleration depends upon the direction of velocity or not?

Ans: - 

Unit: - SI unit of acceleration is ms^-2.

           [a]   =         v/t         =   [1/t].[d/t]

           [a]   =        d/t²      =  [L/T²][LT^-2]

The direction of acceleration does not depend on velocity but on the “change in velocity”.