To determine Whether a machine can multiply the Input Force, the Input Distance, and the Input Energy. Explanation Given Info : Machine is a device that helps us make our work easier. It can change the magnitude or direction of force. It can also change the magnitude of the distance but it can never change the value of energy because energy is always conserved. Formula Used: Work done = Force × Distance Or, W = F × s Here, all alphabets are in their usual meanings. Calculation: Since a machine played a very important role to make our work easier and work done is defined as the product of force and distance. Work done = Force × Distance Or, W = F × s − − − − − ( i ) Where ‘F’ is force and‘s’ is distance. From equation (i), we can conclude that the value of work done can’t change in a particular operation with the enforcement of a given machine because work done is the form energy which is always conserved. Thus a machine can’t multiply its input energy. Again from equation (i), the product of force and distance is constant in a particular operation. So, the magnitudeof these two physical quantities will be reciprocal to each other. F × s &#

12th Edition

ISBN: 9780135745816

Author: Hewitt

Publisher: PEARSON

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Chapter 7, Problem 18RCQ

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Whether a machine can multiply the Input Force, the Input Distance, and the Input Energy.

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Chapter 7, Problem 17RCQ

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Chapter 7 Solutions

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