Answered: A uniform 4 m, 60 N horizontal plank is…

A uniform 4 m, 60 N horizontal plank is shown with a 40 N weight resting on top, 1.0 m from the right end. The plank is in equilibriun F₂ = N. Im F₁ Answer: 4m F₂

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter8: Rotational Equilibrium And Dynamics

Section: Chapter Questions

Problem 34P

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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.

Question

A uniform 4 m, 60 N horizontal plank is shown with a 40 N weight resting on top, 1.0 m from the right end. The plank is in equilibrium.
F₂= N.
Im
Answer:
4m
F₂

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Step 1: Length of plank is given weight resting at 1m from right end

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Step 2: Using net torque at A =0 to determine F2

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