Answered: A lever has an input arm 50 cm long and…

A lever has an input arm 50 cm long and an output arm 20 cm long. a. What is the mechanical advantage of the lever? b. If the input force is 100 N, what is the output force?

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter10: Work, Energy And Machines

Section10.2: Machines

Problem 28PP

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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.

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A lever has an input arm 50 cm long and
an output arm 20 cm long.
a. What is the mechanical advantage of the
lever?
b. If the input force is 100 N, what is the output
force?

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