At Time T = 0 S, an Object Is Observed $\Delta$

question 31

Multiple Choice

At time t = 0 s, an object is observed at x = 0 m; and its position along the x axis follows this expression: x = -4t + t², where the units for distance and time are meters and seconds, respectively. What is the object's displacement $\Delta$
x between t = 1.0 s and t = 3.0 s?

• A)+16 m
• B)-21 m
• C)+10 m
• D)+2 m
• E)-5 m

---

Definitions:

Type II Error

The error made when failing to reject a false null hypothesis, also known as a false negative.

Acquitted

The legal judgment that a person is not guilty of the crime with which they were charged.

Type II Error

The mistake made when a wrong null hypothesis is mistakenly accepted.

Beta (β)

A measure of the volatility, or systematic risk, of a security or portfolio in comparison to the market as a whole.