Assignment 8 UniformCircularMotion: Problem 10 (1 point) The 4.0kg block in the figure is attached to a vertical rod by means of two strings each of length L=3.5m. When the system rotates about the axis of the rod, the strings are attached a distance d=2.0m apart and the tension in the upper string is 167.4N. What is the tension in the lower cord? How many revolutions per minute does the system make? Find the number of revolutions per minute at which the lower cord just goes slack