A 20- ft- high column shortens by 0.6 in. under a load. What is the resulting strain in the column?
A)0.0025 in.
B)0.0025
C)0.0020
D)0.0020 in.
E)None of the above

Question

Quizplus · Accepted Answer

Strain is defined as the change in length divided by the original length. The change in length is 0.6 in, and the original length is 20 ft (which is 240 in). Therefore, strain = 0.6 in / 240 in = 0.0025, which is a unitless measure.

A 20- Ft- High Column Shortens by 0