The cylindrical plug has a weight of

1.7lb

and it is free to move within the confines of the smooth pipe. The spring has a stiffness

k=14l(b)/(f)t

and when no motion occurs the distance

d=0.5ft

. The plug is traveling with a constant speed of

15f(t)/(s)

, which is caused by the rotation of the pipe about the vertical axis. (Figure 1)

The cylindrical plug has a weight of 1.7lb and it is free to move within the confines of the smooth pipe. The spring has a stiffness k=14lb/ft and when no motion occurs the distance d=0.5ft. The plug is traveling with a constant speed of 15ft/s, which is caused by the rotation of the pipe about the vertical axis. (Figure 1) The cylindrical plug has a weight of 1.7lb and it is free to move within the confines of the smooth pipe. The spring has a stiffness k=14lb/ft and when no motion occurs the distance d=0.5ft. The plug is traveling with a constant speed of 15ft/s, which is caused by the rotation of the pipe about the vertical axis. (Figure 1)