A Stone Is Thrown Downward from a Cliff

question 26

Multiple Choice

A stone is thrown downward from a cliff.Take "up" to be the positive direction.Which of the following statements is true about the stone?

• A) The velocity is negative,the acceleration is negative,and the speed is negative.
• B) The velocity is positive,the acceleration is negative,and the speed is positive.
• C) The velocity is negative,the acceleration is negative,and the speed is positive.
• D) The velocity is positive,the acceleration is positive,and the speed is positive.

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Definitions:

Irritable

A state of having a quick temper or being easily annoyed.

Teratogen

Any agent or factor that causes malformation of an embryo or fetus, including certain drugs, infections, and environmental chemicals.

Birth Defect

A physical or biochemical abnormality that is present at birth and can lead to disabilities or health problems.

Nature Versus Nurture

A debate concerning the relative importance of an individual's innate qualities versus personal experiences in determining or causing differences in physical and behavioral traits.