The displacement of a particle is given by equation s = 2sinT + 3 cosT where T is measured in seconds. Find the average velocity during the time period [1, 1.001]. Solution average velcotiy = [2sin?*1.001 + 3 cos?*1.001] - [ 2sin?*1 + 3 cos?*1 ]/0.001= 4103 m/s.