A particle is moving along x-axis with acceleration`a = a_(0) (1 – t//T)` where `a_(0)` and T are constants. The particle at t = 0 has zero velocity. Calculate the average velocity between t = 0 and the instant when a = 0.

Explanation

`x_(1)+x_(2)+x_(3)+x_(4)=l rArr overset(..)(x)_(1)+overset(..)(x)_(2)+overset(..)(x)_(3)+overset(..)(x)_(4)=0rArr a_(1)+a_(2)+a_(2)+a_(3)=0rArr a_(1)+2a_(2)+a_(3)=0`