SPH4U University Grade 12 Physics - Coulomb's Law?

AI Thread Summary
The discussion revolves around solving a physics problem using Coulomb's Law involving three point charges arranged at the corners of a triangle. The user is tasked with calculating the magnitude of a third charge, q₃, given two negative charges, q₁ and q₂, and the direction of the resultant force on q₃. There is a request for clarification on the arrangement of the charges, as the user is unsure how to begin the calculations. The conversation highlights the need for visual aids or detailed descriptions to facilitate understanding of the problem setup. Overall, the focus is on applying Coulomb's Law to determine the unknown charge based on the forces acting on it.
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Homework Statement



SPH4U University Grade 12 Physics - Coulomb's Law?
I have to determine the answer using Coulomb's Law. Please help me figure out how to do this !

Three point charges, q₁= -5.00 μC, q₂= -4.00 μC, and q₃ which is negative are arranged as shown on three corner of side a=0.500 m. The direction of the forces on qt is at +20.0° with respect to the + x axis.
Calculate the magnitude of q₃

Homework Equations



Coulomb's Law

The Attempt at a Solution



I don't even know how to start :confused:
 
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Can you attach a picture or describe how q1 and q2 are situated?
 

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