Explanation If the applied force and the resistance are situated in opposite sides of the axis, it is known as first-class lever. If the resistance is more close to the axis and both the force and resistance is in same side of the axis then it is known as second-class lever. If the force applied is more close to the axis and both the force and resistance is in same side of the axis then it is known as third-class lever. Thus, the golf club and broom belongs to third class and the swinging door belongs to second-class lever. Pictorial representation: Fig...

7th Edition

ISBN: 9780073522760

Author: Susan J Hall

Publisher: McGraw-Hill Education

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Question

Chapter 13, Problem 6IP

Summary Introduction

To explain: The lever classes for a golf club, a swinging door and a broom.

Concept introduction: A rigid bar which can be rotated about an axis due to a force which can move a resistance is known as lever. The liver can be classified as first-class lever, second class lever, and third-class lever.

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Chapter 13, Problem 5IP

Chapter 13, Problem 7IP

Chapter 13 Solutions

Basic Biomechanics

Ch. 13 - Why does a force directed through an axis of...Ch. 13 - Why does the orientation of a force acting on a...Ch. 13 - A 23-kg boy sits 1.5 m from the axis of rotation...Ch. 13 - Prob. 4IP Ch. 13 - Two people push on opposite sides of a swinging...Ch. 13 - Prob. 6IP Ch. 13 - Prob. 7IP Ch. 13 - Prob. 8IP Ch. 13 - A 10-kg block sits motionless on a table in spite...Ch. 13 - Prob. 10IP

Ch. 13 - A 35-N hand and forearm are held at a 45 angle to...Ch. 13 - A hand exerts a force of 90 N on a scale at 32 cm...Ch. 13 - A patient rehabilitating a knee injury performs...Ch. 13 - A worker leans over and picks up a 90-N box at a...Ch. 13 - A man carries a 3 m, 32-N board over his shoulder....Ch. 13 - A therapist applies a lateral force of 80 N to the...Ch. 13 - Tendon forces Ta and Tb are exerted on the...

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The lever classes for a golf club, a swinging door and a broom. Concept introduction: A rigid bar which can be rotated about an axis due to a force which can move a resistance is known as lever. The liver can be classified as first-class lever, second class lever, and third-class lever.

Solution Summary: The author explains the different lever classes for a golf club, swinging door, and broom.

Concept explainers

To explain: The lever classes for a golf club, a swinging door and a broom. Concept introduction: A rigid bar which can be rotated about an axis due to a force which can move a resistance is known as lever. The liver can be classified as first-class lever, second class lever, and third-class lever.

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Chapter 13 Solutions