10. The motion of a particle is described by the position function s(t) measured in days and s(t) in millimetres. a. When is the particle at rest? = - 2t3 15t² 33t + 17, t> 0 where t is b. When is the velocity positive? c. Draw a diagram, or describe a diagram in words, to illustrate the motion of the particle in the first 5 days. d. Find the total distance travelled in the first 5 days.