This is a static of rigid bodies problem Two men are just to lift a 300kg weightwith a crowbar when the fulcum for thelever is 0.3 m from the weight. The firstman exerts his strength at 0.9m while thesecond is at 1.5 from the fulcumrespectively. If the men interchangedpositions, they can raise a 340kg weight.What force does the first man exert?

Static equilibrium condition is given. We need to find the force applied by men.

Answered: This is a static of rigid bodies…

Science

Physics

This is a static of rigid bodies problem

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 75A

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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

This is a static of rigid bodies problem

Two men are just to lift a 300kg weight
with a crowbar when the fulcum for the
lever is 0.3 m from the weight. The first
man exerts his strength at 0.9m while the
second is at 1.5 from the fulcum
respectively. If the men interchanged
positions, they can raise a 340kg weight.
What force does the first man exert?

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