A street light is at the top of a 24 ft pole. A 5 ft tall girl walks along a straight path away from the pole with a speed of 6 ft/sec. At what rate is the tip of her shadow moving away from the light (ie. away from the top of the pole) when the girl is 24 ft away from the pole? Answer: How fast is her shadow lengthening? Answer:

A street light is at the top of a 24 ft pole. A 5 ft tall girl walks along a straight path away from the pole with a speed of 6 ft/sec. At what rate is the tip of her shadow moving away from the light (ie. away from the top of the pole) when the girl is 24 ft away from the pole? Answer: How fast is her shadow lengthening? Answer:

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter25: Reflection And Refraction Of Light

Section: Chapter Questions

Problem 3OQ: What happens to a light wave when it travels from air into glass? (a) Its speed remains the same....

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