A Rock Is Dropped from a Height of 828

question 107

Multiple Choice

A rock is dropped from a height of 828.1 meters and falls toward earth in a straight line. In t seconds the rock drops a distance of 4.9t² meters. What is the instantaneous velocity downward when it hits the ground?

• A) 3,360,173.089 meters/s
• B) 127.4 meters/s
• C) 63.7 meters/s
• D) 9.8 meters/s
• E) 26 meters/s

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Definitions:

Bone

A rigid organ that constitutes part of the vertebrate skeleton, supporting the body, protecting organs, anchoring muscles, and storing minerals.

Developing Bone

Refers to the growth and formation process of bone tissue, typically occurring during childhood and adolescence through ossification.

Long Bone

A type of bone that is longer than it is wide, primarily found in the limbs and serving as a site for muscle attachment and leveraged movement.

Shaft

A long, slender part of an object, designed to support or transmit mechanical power, such as the handle of a tool or the long part of a feather.