3. Find the velocity and acceleration of end A of the bar. 4 m 309 459 V =2 m/s B V = 3 m/s 32 -ap = 4.5:0 = 2 45" 4 m 30 2 m 15 450 V = 2 m/s AIC B-3m/'s V = 3 m/s 120 B CAB FB/CI TAB B An B/AL