00:01
Hi, here in this given problem, first of all, we draw the given velocity time curve.
00:12
The time is being represented over x -axis and velocity that is being represented over the y -axis.
00:23
The maximum velocity, this is plus 8 and minus 8.
00:31
And the time axis has been divided into 5 and 10 and 15 and 22nd here.
00:50
Now corresponding to it we have to draw acceleration time curve.
00:56
So we draw a corresponding cartesian system here.
01:02
Below the first one and divide the time axis into the same time interval 5 and 10 and 15 and then 20.
01:43
Now the given velocity time curve is something like this.
01:49
Initially the velocity is constant from 0 to 5 second, then it increases linearly from minus 8 to plus 8.
02:06
Here like this.
02:08
And then again it becomes constant from 15 to 20 second.
02:15
So corresponding to it we have to plot acceleration time curve in the first part of the problem.
02:21
So acceleration from 0 to 5 seconds is 0 as velocity is constant.
02:49
So initially the acceleration will be 0 here for 0 to 5 second.
02:58
This is 0.
02:58
So, then for a time interval of 5 to 15 second, we use an expression for acceleration.
03:18
Final velocity minus initial velocity divided by the time interval...