Answer:
The average velocity of the particular is -1.16m/s
The first thing to do in this kind of question is to interfere the function V(t) in order to get the function for the displacement of the particle with time x(t). After getting this function, next you insert the time limit of the interview to find the change in displacement or delta x and then divide it by the difference in the time interval.
Step-by-step explanation:
The detailed step by step approach is contained in the attachment below
Thank you and I hope this solution is helpful to you.