2.! 4 3.. A particle moves according to a law of motion 3U} = 1 y if} I] , where .r is measured in seconds and s' is 1' measured in feet. [Al Find the velocity of the particle at time i and indicate the units for the function. :3 ptsi [E] Find the acceleration of the particle at time r and indicate the units for the function. {3 pts] [C] Determine when the particle is at rest. [2 ptsi [D] 1.I1.rhen is the particle moving in the positive direction? The negative direction? Clearly lahel your answers. [4 pts} [E] 1.ltrhen is the particle accelerating? Decelerating? Clearly lapel your answers. {4 ptsi [F] 1.ltrhen is the particle speeding up? 1.r'hen is it slowing down? Clearly label your answers. {4 ms]