A gardener is using a garden fork to pull a weed out of the ground. The fork is 1.2 m long and its pivot point is 0.20m from the end. A force of 500 N is needed to lift the weed out of the ground. What force does the gardener need to apply to the fork handle?

A gardener is using a garden fork to pull a weed out of the ground. The fork is 1.2 m long and its pivot point is 0.20m from the end. A force of 500 N is needed to lift the weed out of the ground. What force does the gardener need to apply to the fork handle?

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

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 gardener is using a garden fork to pull a weed out of the ground. The fork is 1.2 m
long and its pivot point is 0.20m from the end. A force of 500 N is needed to lift the
weed out of the ground. What force does the gardener need to apply to the fork
handle?

answer : 100m

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