Q2: Man A weighs 150 N and man B weighs 200 N. They desire to find the weight and position of the centre of the gravity of heavy bar 16 m long. They put a fulcrum under the bar, and when the man B stands on one end and the fulcrum is 7.5 m from him, the bar is balanced in a horizontal position. When man A stands on the same end, the fulcrum is 8 m from him for balance. Draw the two diagrams required and calculate a) the weight of the bar and b) the postion of its center of gravity.

Q2: Man A weighs 150 N and man B weighs 200 N. They desire to find the weight and position of the centre of the gravity of heavy bar 16 m long. They put a fulcrum under the bar, and when the man B stands on one end and the fulcrum is 7.5 m from him, the bar is balanced in a horizontal position. When man A stands on the same end, the fulcrum is 8 m from him for balance. Draw the two diagrams required and calculate a) the weight of the bar and b) the postion of its center of gravity.

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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Concept explainers

Center of Gravity of a system

The centre of gravity is a property that is based on the geometry of a rigid body or any particle. It is described as an equilibrium point or a hypothetical location where the total weight of the body is concentrated.

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Q2: Man A weighs 150 N and man B weighs 200 N. They desire to find the
weight and position of the centre of the gravity of heavy bar 16 m long. They
put a fulcrum under the bar, and when the man B stands on one end and the
fulcrum is 7.5 m from him, the bar is balanced in a horizontal position. When
man A stands on the same end, the fulcrum is 8 m from him for balance. Draw
the two diagrams required and calculate a) the weight of the bar and b) the
postion of its center of gravity.

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