Mechanics- general motion in a straight line.

[Shah 72]

I don't understand q(e) . Am I not supposed to calculate the distance between the interval 0 to 2? The textbook ans only shows the interval between 0 and 22. Should I calculate the distance taming only the second equation of velocity?

 

[skeeter]

Which integral expression shows the correct value for total distance traveled?

 

[Shah 72]

Which integral expression shows the correct value for total distance traveled?

View attachment 11186

It's the first one . Thank you!