A Rock Is Dropped from a Vertical Cliff

question 27

Multiple Choice

A rock is dropped from a vertical cliff. The rock takes 3.00 s to reach the ground below the cliff. A second rock is thrown vertically from the cliff. It takes 2.00 s to reach the ground below the cliff from the time it is released. With what velocity was the second rock released?

• A)4.76 m/s upward
• B)5.51 m/s downward
• C)12.3 m/s upward
• D)4.76 m/s downward
• E)12.3 m/s downward

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Definitions:

Habituation

the process by which an individual becomes accustomed to a stimulus after repeated exposure, leading to a decrease in their response.

Pay Less Attention

Act of giving reduced focus or importance to something, potentially leading to overlooking or ignoring it.

Indeterminate Cleavage

Type of cleavage characteristic of deuterostomes; during early cleavage each cell has the potential of developing into a complete embryo. Compare with determinate cleavage.

Deuterostomes

A major lineage of animals characterized by embryonic development where the anus forms before the mouth, including vertebrates and several other phyla.