A 2.0-m-long rod has a density in kilograms per meter A= a + bx,where a = 1.0 kg/m, b = 1.0 kg/m2, and x is the distance from the left end of the rod. The rod rests horizontally with each end supported by a scale. The force exerted by the left scales is %3D 39.2 N O 22.9 N O 16.3 N O 4.0 N 32.6 N

A 2.0-m-long rod has a density in kilograms per meter A= a + bx,where a = 1.0 kg/m, b = 1.0 kg/m2, and x is the distance from the left end of the rod. The rod rests horizontally with each end supported by a scale. The force exerted by the left scales is %3D 39.2 N O 22.9 N O 16.3 N O 4.0 N 32.6 N

College Physics

10th Edition

ISBN:9781285737027

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Rotational Dynamics

Section: Chapter Questions

Problem 8WUE: A horizontal plank 4.00 m long and having mass 20.0 kg rests on two pivots, one at the left end and...

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Concept explainers

Mechanical Properties of Solids

There are three types of matter- solid, liquid and gas. Out of them, solids have a rigid shaped and size. The intermolecular forces of attractions in solids are greatest. Mechanical properties are the physical properties of a material which it shows, when it is provided with certain amount of force or load. These properties are to be kept in mind for various purposes. When a force is applied to an object, the object may or may not get deformed depending upon its elastic property. But every time the object develops a restoring force against the force applied. This is commonly known as stress. If the object changes its dimensions due to the force applied it develops strain ( which is the ratio of change in dimension to the original dimension).

Question

100%

A 2.0-m-long rod has a density in kilograms per meter A
= a + bx, where a =
1.0 kg/m, b = 1.0 kg/m2, and x is the distance from the left end of the rod. The rod
rests horizontally with each end supported by a scale. The force exerted by the left
scales is
%3!
39.2 N
22.9 N
O 16.3 N
O4.0 N
32.6 N

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