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 46 cm. If a 100 Newton force is required to keep the spring stretched to a length of 57 cm, how much work is required to stretch it from 61 cm to 84 cm? Your answer must include the correct units.

151.6 J

Explanation:

Given

Natural length of spring

Length after extension

Force applied

we know

where K=spring constant

Work done require to stretch a spring x m is given by

From to Work done is

i wanna say it’s between b and d, leaning more towards b.

report!

explanation:

physics means: "the branch of science concerned with the nature and properties of matter and energy. the subject matter of physics, distinguished from that of chemistry and biology, includes mechanics, heat, light and other radiation, sound, electricity, magnetism, and the structure of atoms."