Answer: Moving Shadow A ball is dropped from a height of 20 meters, 12 meters away from
Chapter 3, Problem 48(choose chapter or problem)
Moving Shadow A ball is dropped from a height of 20 meters, 12 meters away from the top of a 20-meter lamppost (see figure). The ball’s shadow, caused by the light at the top of the lamppost, is moving along the level ground. How fast is the shadow moving 1 second after the ball is released? (Submitted by Dennis Gittinger, St. Philips College, San Antonio, TX)
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