Force Calculated: Harris & Paul's Surfboard Challenge

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SUMMARY

The discussion centers on a physics problem involving Harris and Paul carrying a surfboard measuring 2.43 meters in length and weighing 155 N. Paul applies a lifting force of 85 N at one end, necessitating the calculation of the distance from Paul at which Harris should lift the other end. The solution requires applying the principle of rotational equilibrium, specifically the equation for the sum of moments about a point equating to zero. Participants emphasize the importance of understanding moments and torques to solve the problem accurately.

PREREQUISITES
  • Understanding of rotational equilibrium principles
  • Familiarity with the concept of moments and torques
  • Basic knowledge of force calculations
  • Ability to apply the equation T = Fd
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  • Study the principles of rotational equilibrium in physics
  • Learn how to calculate moments and torques in various scenarios
  • Practice solving problems involving multiple forces and their effects on equilibrium
  • Explore advanced applications of the equation T = Fd in real-world contexts
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Homework Statement



Harris and Paul carry a surfboard that is 2.43 m long and weighs 155 N. Paul lifts one end with a force of 85 N.

What part of the board should Harris lift?
m from Paul

Homework Equations


T=Fd

The Attempt at a Solution


I just did 155N-85N
=70N
which is the amount Harris exerted,

After getting that force I am unsure of what to use to get the "d" he needed
 
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You're missing the eqaution for rotational equilibrium, the sum of moments about any point = 0. Are you at all familiar with moments or torques, and the calculation of their directions and values?
 
PhanthomJay said:
You're missing the eqaution for rotational equilibrium, the sum of moments about any point = 0. Are you at all familiar with moments or torques, and the calculation of their directions and values?

not sure exactly?
what would I have to do from here?
 

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