. A particle is moving on a vertical line (in meters) so that its coordinate at time ris a. What is the velocity after 3 seconds? FO=1-1211> **^=3+-12 V8 31-12 (3)=3(3)-12=15 b. When is the particle at rest? 31=-12 (3++3,7(4-4) 317320 37=-3 7=4 +-410 7=4 c. When is the particle moving in a positive direction? y=t3-12t+3 d. Find the total distance traveled from 0t3. e. Find the acceleration at timer and after 3 seconds. a(t) = v1 9(1) = 3.77 9(1)=6(3) = 18 f. When is the particle speeding up? When is it slowing down?