The Height of an Object in Feet Above the Ground $\begin{array}{cccccccc}t \text { (sec) } & 0 & 1 & 2 & 3 & 4 & 5 & 6 \\y \text { (feet) } & 10 & 45 & 70 & 85 & 90 & 85 & 70\end{array}$

question 40

Multiple Choice

The height of an object in feet above the ground is given in the following table.If heights of the object are cut in half, how does the average velocity change, over a given interval? $\begin{array}{cccccccc}t \text { (sec) } & 0 & 1 & 2 & 3 & 4 & 5 & 6 \\y \text { (feet) } & 10 & 45 & 70 & 85 & 90 & 85 & 70\end{array}$

• A)It is cut in half.
• B)It is doubled.
• C)It remains the same.
• D)It depends on the interval.

---

Definitions:

Homeostasis

The body’s tendency to maintain an equilibrium, or steady state.

Homeostasis

The self-regulating process by which biological systems maintain stability while adjusting to changing external conditions.

Yerkes-Dodson Law

The psychological principle stating that performance is best under conditions of moderate arousal rather than either low or high arousal.

Moderate Arousal

Refers to an optimal level of alertness or physical and mental activation at which performance on a task is best.