Question

select the correct answer.
sally is training for the 1,000-meter running race at her school. her goal is to place third or better. how can sally determine if she is making progress toward her goal?
a. she can monitor her practice run times to see if they are decreasing.
b. she can watch a video of her running to uncover any deficiencies.
c. she can draw a diagram that depicts the forces acting on her legs.
d. she can complete an energy analysis to compare her output to her input.

Explanation:

To determine progress toward a better race placement (third or better) in a 1,000 - meter run, a key factor is how fast Sally runs. Decreasing practice run times indicate she is getting faster, which is directly related to improving her performance and thus her chances of placing third or better. Watching a video for deficiencies (option B) helps with form but not directly with measuring progress toward the time - related goal of placing well. Drawing a force diagram (option C) is more related to physics analysis of forces, not race performance progress. Energy analysis (option D) is also a more theoretical physics - based approach and not a practical way to measure progress in race performance.

Answer:

A. She can monitor her practice run times to see if they are decreasing.