
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN: 9781133104261
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Transcribed Image Text:A filmmaker wants to achieve an interesting visual effect by filming a scene through a converging lens with a
focal length of 50.0 m. The lens is placed betwen the camera and a horse, which canters toward the camera
at a constant speed of 7.9 m/s. The camera starts rolling when the horse is 36.0 m from the lens. Find the
average speed of the image of the horse (a) during the first 2.0 s after the camera starts rolling and (b)
during the following 2.0 s.
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