Example 10.4 When a container is placed on a spring balance with an elongation
constant of 65 lb/in (11.6 kg/cm) the spring stretches 3.2 in (8.1 cm). What is the
weight of the container?
Weight = 65 lb/in × 3.2 in = 208 lb
= 11.6 kg/cm × 8.1 cm = 93.96 kg