A Rock Is Thrown Directly Upward from the Edge of the Roof

question 28

Short Answer

A rock is thrown directly upward from the edge of the roof of a building that is 66.2 meters tall.The rock misses the building on its way down,and is observed to strike the ground 4.00 seconds after being thrown.Neglect any effects of air resistance.With what speed was the rock thrown?

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Definitions:

Mammary Glands

Specialized organs in mammals that produce milk to nourish newborn offspring.

Constant Internal Temperature

The maintenance of a steady body temperature independent of the environment.

Mammals

Warm-blooded vertebrates characterized by the presence of hair or fur, secretion of milk by females for the nourishment of the young, and typically the birth of live young.

One-way Air Flow

A respiratory adaptation in some animals, such as birds, allowing air to pass through lungs in a single direction for more efficient gas exchange.