A 6m-100N uniform plank serves as a see saw balanced with a fulcrum at the center. A 800N girl seats on one end of the see saw. Where would her 700N boy friend seat to find balance? a) 1.41m from the center b) 3.42 m from the center c) 3.41 from the left end d) 1.41 m from the left end

A 6m-100N uniform plank serves as a see saw balanced with a fulcrum at the center. A 800N girl seats on one end of the see saw. Where would her 700N boy friend seat to find balance? a) 1.41m from the center b) 3.42 m from the center c) 3.41 from the left end d) 1.41 m from the left end

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter8: Rotational Motion

Section: Chapter Questions

Problem 90A

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Concept explainers

Rotational Equilibrium And Rotational Dynamics

In physics, the state of balance between the forces and the dynamics of motion is called the equilibrium state. The balance between various forces acting on a system in a rotational motion is called rotational equilibrium or rotational dynamics.

Equilibrium of Forces

The tension created on one body during push or pull is known as force.

Question

A 6m-100N uniform plank serves as a see saw balanced with a fulcrum at the center. A 800N girl seats on one end of the see saw. Where would her 700N boy friend seat to find balance?

a) 1.41m from the center

b) 3.42 m from the center

c) 3.41 from the left end

d) 1.41 m from the left end

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