Calculating Force in the Turning Effect of Force Equation

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Homework Help Overview

The discussion revolves around calculating the force in the context of the turning effect of force, specifically using the equilibrium condition of moments. Participants are examining the relationship between forces and distances from a pivot point.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster attempts to apply the equilibrium condition F1D1 = F2D2 to find the unknown force F. Some participants question the accuracy of the distance values D1 and D2, while others seek clarification on the distance from the unknown force to the pivot point.

Discussion Status

Participants are actively verifying the values of D1 and D2, with some confirming the distances as 1.0 cm and 8.0 cm. There is a focus on understanding the setup and ensuring the correct interpretation of distances in relation to the pivot point.

Contextual Notes

There is an emphasis on ensuring that distances are correctly measured from the pivot point, and some participants are clarifying the total distance related to the unknown force.

Muhammad Danish
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Homework Statement


upload_2018-4-15_22-34-13.png


Homework Equations


How do we calculate the value of F?

The Attempt at a Solution


Since for an object to be in equilibrium, F1D1 = F2D2 so 7.2 x 1 = F x 8
F = 0.9N, I am pretty much confused with the answer I worked out. If I am wrong or if I am right, please explain me the correct solution so that next time before solving questions of this type, I would be confident.

Thanks.
(Regards)
 

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Both D1 and D2 should be distances as measured from the pivot point. Check to make sure you have the correct values for D1 and D2.
 
TSny said:
Both D1 and D2 should be distances as measured from the pivot point. Check to make sure you have the correct values for D1 and D2.
Yes, the correct values of D1 and D2 are 1.0 cm and 8.0 cm respectively.
 
Muhammad Danish said:
Yes, the correct values of D1 and D2 are 1.0 cm and 8.0 cm respectively.
What is the distance between the unknown force F and the pivot point?
 
TSny said:
What is the distance between the unknown force F and the pivot point?
Oh, It will be 8+1= 9.0 cm?
 
Muhammad Danish said:
Oh, It will be 8+1= 9.0 cm?
Yes.
 

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