A 5 m u n i f o r m l a d d e r w e i g h i n g 120 N i s p l a c e d a g a i n s t a s m o o th w al l in s u c h a w a y t h a t i t m a k e s a n a n gl e o f 60o w i t h t h e h o r iz o n t a l . A m a n w e i g h i n g 480 N climbs up the ladder and stays 1.3 m from its upper end. F i n d (a) t h e f o r c e e x e r t e d b y t h e w a l l a g a i n s t t h e l a d d e r a n d (b) the horizontal and vertical components of the force exerted by the floor on the lower end of the ladder.
A 5 m u n i f o r m l a d d e r w e i g h i n g 120 N i s p l a c e d a g a i n s t a s m o o th w al l in s u c h a w a y t h a t i t m a k e s a n a n gl e o f 60o w i t h t h e h o r iz o n t a l . A m a n w e i g h i n g 480 N climbs up the ladder and stays 1.3 m from its upper end. F i n d (a) t h e f o r c e e x e r t e d b y t h e w a l l a g a i n s t t h e l a d d e r a n d (b) the horizontal and vertical components of the force exerted by the floor on the lower end of 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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22. A 5 m u n i f o r m l a d d e r w e i g h i n g 120 N i s p l a c e d a g a i n s t a s m o o th w al l in s u c h a w a y t h a t i t m a k e s a n a n gl e o f 60o w i t h t h e h o r iz o n t a l . A m a n w e i g h i n g 480 N climbs up the ladder and stays 1.3 m from its upper end.
F i n d
(a) t h e f o r c e e x e r t e d b y t h e w a l l a g a i n s t t h e l a d d e r a n d
(b) the horizontal and vertical components of the force exerted by the floor on the lower end of the ladder.
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