as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
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describe the behavior of a rock falling through air.
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when a rock falls through air, it experiences a force of gravity that causes it to accelerate downwards. this acceleration is known as the gravitational acceleration of a falling object, called "g", which is 9.8 m/s^2. the rock starts from rest, meaning it has an initial speed of 0 m/s. thus, its velocity increases with time, meaning the rock will move faster the longer it is in the air. the rock will eventually reach its terminal velocity - the maximum velocity it can reach - which is reached after reaching a certain amount of air resistance. at this point, the rock will continually maintain the same velocity until it hits the ground.
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