The velocity - time graph of an ascending passenger order lift is given in figure. What is the acceleration of the lift:
(i) during the first two seconds ,
(ii) between 2nd and `10 th` second,
(iii) during the last two seconds. .

Explanation

(i) 2.3 m/`s^(2)` (ii) Zero (iii) -2.3 m/`s^(2)`