Calculating torque, force and angles

  • Thread starter Leata
  • Start date
  • #1
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Homework Statement


A lever is used to lift a box, ignore the mass. the lever makes a 43° angle at the pivot, point A, the length of the lever is 1,8 m, Force P is apply 15° at the end of the lever
Force P causes a moment of 500N.m about point A. Determine the force P?

Homework Equations



T=rFsinθ

The Attempt at a Solution


T=rFsinθ
F=T/rsinθ
F=500/1.8sin15
F=1073N
 

Answers and Replies

  • #2
PhanthomJay
Science Advisor
Homework Helper
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When using your formula for Torque, theta is the interior angle in between the force vector and the lever. Without a sketch, I don't know if you correctly determined theta. Welcome to PF!
 

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