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 39.2 N 22.9 N O 16.3 N 4.0 N O 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 39.2 N 22.9 N O 16.3 N 4.0 N O 32.6 N

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter14: Static Equilibrium, Elasticity, And Fracture

Section: Chapter Questions

Problem 78PQ: A massless, horizontal beam of length L and a massless rope support a sign of mass m (Fig. P14.78)....

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Concept explainers

Torque

Torque is the rotational equivalent of linear force in physics and mechanics. Based on the course of study, it is also known as the moment of force, rotational force, or turning effect.

Question

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
39.2 N
22.9 N
16.3 N
4.0 N
32.6 N

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