Question

Erratic Motion Kinematics Problem 1 In figure 1 we have the velocity profile (ft/sec) of a particle (the time scale is in seconds), determine the acceleration and displacement profiles; estimate the final position 14 10 12 15 18 21 Figure 1 Problem 2 If a particle starts with an initial velocity of 10 ft/ sec and has the acceleration profile of figure 2 (ft/sec) - determine its final velocity and its displacement profile. 50 乡◆◆◆◆◆◆◆◆◆◆◆◆◆◆◆ 30t 20 10 10 15 Figure 2

Answer 1

I would like just point out one thing during drawing of graphs is that use free hand. Please find below picture for graphs-

fm t-to t-, d15-0s d 3-0 dt dt 1.5-.5 a-t grath displace ment- area under V-t graph (80 120 from t= 2.5 to 18,5 4s-axisx 118.5-8.9-75 Staseting hoint [adding au displacemens, t kh AV- (adt Change tn velocitg = area tender a-t graph 良 ro Final velocit "25 ft|tec Ladd all veleciy change , 12s + STD + S0 -1IAS ft) qm fnrnt-ls totsas, as = 625ナ11,2 s)X1o=1m