A particle moves along a straight line and its position at time is given by where s is measured in feet and t in seconds.

Find the velocity (in ft/sec) of the particle at time :

The particle stops moving (i.e. is in a rest) twice, once when and again when where . is

and is

What is the position of the particle at time ?

Finally, what is the TOTAL distance the particle travels between time and time ? ........how do we find the total distance???????