The
spring-flex exercise system consists of a
spring with one end fixed and a handle on the other end. The idea is
that you exercise your muscles by stretching the spring from its
natural length, which is 34 cm. If a 120 Newton force is required to
keep the spring stretched to a length of 50 cm, how much work is
required to stretch it from 52 cm to 74 cm? Your answer must include
the correct
units.
Work =