Question

what is average acceleration??

Answer 1

it's average acceleration will be:

3.6 m/sec2

i hope this will help you dear

Answer 2

Average acceleration is the change in velocity=a1 divided by an elapsed time.

average acceleration=v1+V2/t1+T2

v1=a1×t1
3×2=6m/sec

v2=a2×t2
4×3=12m/sec

average acceleration=6+12/2+3
18/5= 3.6m/ sec²