### Home > APCALC > Chapter 10 > Lesson 10.3.1 > Problem 10-133

10-133.

The velocity of a particle is given by . Homework Help ✎

For what value(s) of

is the particle at rest?When

or. What is the acceleration of the particle at

?*a*(*t*) = cos(*πt*) –*t*(*π*)sin(*πt*)Write a function

for the position if.Use integration by parts. Let

and .Solve for

given.