500 -gr collar (1 may slide along pole AB. The spring has an undeformed length of 400.0 mm and a Spring constant of 135 me. Knowing that the collar is released from rest at A and that I! = 300.0 mm d = 500.0 mm a] determine the speed of collar at B if there is frictiOn between collar and rod with a coefficient of friction of on = 0.25 m, = 0.35 b) using the results of part 3] determine the speed of collar at E if thEre is no friction between collar and rodr NOTE: You may need: ldfcosl = In{1;'l:o56 + tan'El] jdaicos'e = tan'El