Citations

Information: - Sandaer, Lionel. Investigating Science and Technology. Canada: Pearson education Canada.2008
- " Glencole Science Level Blue Chapter 20: work and simple machines" Glencoe.Mcgraw-hill. April 2013, April 6 2013. <www.glencoe.Mcgraw-hill.com>
- " Mechanical advantage-section 4.3 quiz" Science Source. April 7 2013 <www.sciencesource.ca >








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input and output forces
Mechanical advantage and Ideal Mechanical advantage
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