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9.5 Exercise 7

Avg difficulty 2.5

What is the mechanical advantage of a nail puller—similar to the one shown in the figure —where you exert a force 45 cm\text{45 cm} from the pivot and the nail is 1.8 cm\text{1}.\text{8 cm} on the other side? What minimum force must you exert to apply a force of 1250 N\text{1250 N} to the nail?

OpenStax College Physics 2e, 9.5 Simple Machines, exercise 7

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.