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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Question
A playground is on the flat roof of a city school, 6.00 m above
the street below (Fig. P3.19). The vertical wall of the building
is h = 7.00 m high, to form a 1-m-high railing around the playground.
A ball has fallen to the street below, and a passerby
returns it by launching it at an angle of θ = 53.0° above the
horizontal at a point d = 24.0 m from the base of the building
wall. The ball takes 2.20 s to reach a point vertically above
the wall. (a) Find the speed at which the ball was launched.
(b) Find the vertical distance by which the ball clears the wall.
(c) Find the horizontal distance from the wall to the point on
the roof where the ball lands.
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