A  u n i f o r m   b a r   o f   w e i g h t  40 N is 4 m long. W e i g h t s   o f   60N and 100N   a r e   p l a c  e d   o n   t he  b a r   a t   p o  i nt s   w h i c h   a r e   1.5m and 3m,  r e s p e c t i v e l y ,   f r o m   t h e   l e f t   e n d .   A t   w h a t   p o i n t   o n t h e   b a r   m u s t   a   s i n g l e   f o r c e   b e   a p p l i e d   t o  s u p p o r t   i t   i n   a   h o r i z o n t a l   p o s i t i o n ?

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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18-19. A  u n i f o r m   b a r   o f   w e i g h t  40 N is 4 m long. W e i g h t s   o f   60N and 100N   a r e   p l a c  e d   o n   t he  b a r   a t   p o  i nt s   w h i c h   a r e   1.5m and 3m,  r e s p e c t i v e l y ,   f r o m   t h e   l e f t   e n d .   A t   w h a t   p o i n t   o n t h e   b a r   m u s t   a   s i n g l e   f o r c e   b e   a p p l i e d   t o  s u p p o r t   i t   i n   a   h o r i z o n t a l   p o s i t i o n ?

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