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Skill 1 of 10
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Torque

To tighten the bolt, you pull a wrench. Do you pull close or far from the bolt – from the axis-of-rotation? Far, of course. Everyone knows it’s easier to turn something with a longer “lever” arm.

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References:

  1. Sears and Zemansky’s Univesity Physics with Modern Physics’ (book), Hugh D. Young & Roger A. Freedman, Pearson Education, 13th ed., 2012
  2. Torque’ (web page), Ryan Martin, Neary and others, Physics LibreTexts, 2019, libretexts.org/Bookshelves/University_Physics/Book%3A_Introductory_Physics_-_Building_Models_to_Describe_Our_World_(Martin%2C_Neary%2C_Rinaldo%2C_and_Woodman)/11%3A_Rotational_dynamics/11.03%3A_Torque (accessed Mar. 13th, 2020), chapter 11.3