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Ch 06: Dynamics I: Motion Along a Line
Chapter 6, Problem 6

What is the magnitude of the acceleration of a skydiver at the instant she is falling at one-half her terminal speed?

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Terminal Velocity

Terminal velocity is the constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration. For a skydiver, this occurs when the force of gravity is balanced by the drag force due to air resistance, resulting in zero net acceleration.
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Acceleration

Acceleration is the rate of change of velocity of an object with respect to time. In the context of a skydiver, it is influenced by gravitational force and air resistance. At any point during the fall, the net acceleration can be calculated by considering these forces, especially when the skydiver is not at terminal velocity.
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Drag Force

Drag force is the resistance force experienced by an object moving through a fluid, such as air. It increases with the speed of the object and is dependent on factors like the object's shape, size, and the density of the fluid. For a skydiver, the drag force plays a crucial role in determining the acceleration as she approaches terminal velocity.
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Related Practice
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