Q. Consider two cylindrical rods of identical dimensions, one of rubber and the other of steel. Both the rods are fixed rigidly at one end to the roof. mass is attached to each of the free ends at the centre of the rods.
Solution:
According to the diagram shown below in which a man AT is attached at the center of each rod, then both rods will be elongated. But due to different elastic properties of the material the steel rod will elongate without making any perceptible change in shape, but the rubber rod will elongate with the shape of the bottom edge tapered to a tip at the centre.
