# Suppose that you loft the ball with an initial speed of v = 16.1 m/s, at an angle of θ = 51.8° above the horizontal. At this instant your opponent is d = 10.7 m away from the ball. He begins moving away from you 0.300 s later, hoping to reach the ball and hit it back at the moment that it is h = 2.02 m above its launch point. With what minimum average speed must he move? (Ignore the fact that he can stretch, so that his racket can reach the ball before he does.)

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Suppose that you loft the ball with an initial speed of v = 16.1 m/s, at an angle of θ = 51.8° above the horizontal. At this instant your opponent is d = 10.7 m away from the ball. He begins moving away from you 0.300 s later, hoping to reach the ball and hit it back at the moment that it is h = 2.02 m above its launch point. With what minimum average speed must he move? (Ignore the fact that he can stretch, so that his racket can reach the ball before he does.)

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