A Track Star in the Broad Jump Goes into the Jump

question 34

Multiple Choice

A track star in the broad jump goes into the jump at 10 m/s and launches himself at 20° above the horizontal.How long is he in the air before returning to Earth? Note: g = 9.8 m/s².

• A) 0.35 s
• B) 0.42 s
• C) 0.70 s
• D) 0.89 s

---

Definitions:

Procedures

A series of actions conducted in a certain order or manner to achieve a result or carry out a task.

Random Assignment

Process of assigning subjects to the experimental or control groups randomly, so that each subject has an equal chance of being in either group.

Equal Chance

The principle that all participants or elements in a given situation have the same likelihood or opportunity of experiencing a certain outcome.

Independent Variable

The factor or condition that researchers intentionally change to study its impact on an outcome.