A 88 kg window cleaner uses a 12 kg ladder that is 4.2 m long. He places one end on the ground 2.7 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 2.8 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are (a) the magnitude of the force on the window from the ladder, (b) the magnitude of the force on the ladder from the ground, and (c) the angle (relative to the horizontal) of that force on the ladder?
A 88 kg window cleaner uses a 12 kg ladder that is 4.2 m long. He places one end on the ground 2.7 m from a wall, rests the upper end against a cracked window, and climbs the ladder. He is 2.8 m up along the ladder when the window breaks. Neglect friction between the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are (a) the magnitude of the force on the window from the ladder, (b) the magnitude of the force on the ladder from the ground, and (c) the angle (relative to the horizontal) of that force on the ladder?
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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Transcribed Image Text:A 88 kg window cleaner uses a 12 kg ladder that is 4.2 m long. He places one end on the ground 2.7 m from a wall, rests the upper end
against a cracked window, and climbs the ladder. He is 2.8 m up along the ladder when the window breaks. Neglect friction between
the ladder and window and assume that the base of the ladder does not slip. When the window is on the verge of breaking, what are (a)
the magnitude of the force on the window from the ladder, (b) the magnitude of the force on the ladder from the ground, and (c) the
angle (relative to the horizontal) of that force on the ladder?
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