Question

select the correct answer.
which data - gathering activity would be useful for a biomechanical analysis?
a. creating a graph that compares the salaries of professional gymnasts
b. comparing the numbers of female gold medalists and male gold medalists in gymnastics
c. tracking the increase in the number of gymnastics programs in a city over the course of a decade
d. measuring the angle at which a gymnasts body bends during an aerial flip

Explanation:

Biomechanical analysis focuses on the mechanics of biological systems. Measuring body angles (as in option D) relates to physical movement mechanics. Options A (salaries) and B (gender - medalist numbers) are social - science or business - related (e.g., economics, sociology). Option C (tracking program numbers) is more about program growth (possibly management or social - science). Only option D directly involves physical movement data relevant to biomechanics.

Answer:

D. measuring the angle at which a gymnast's body bends during an aerial flip