9-13. Coulomb Force in Two Dimensions

9-13. Coulomb Force in Two Dimensions - Coulomb Force in...

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Unformatted text preview: Coulomb Force in Two Dimensions (1a) Find the magnitude and direction of the resultant force on charge q . Magnitude of individual forces: F 1 , = k | q 1 q | r 2 1 , = 5 . 62 10 7 N , F 2 , = k | q 2 q | r 2 2 , = 6 . 74 10 7 N . Components of individual forces: F x 1 , = F 1 , cos 45 , F y 1 , = F 1 , sin45 , F x 2 , = 0 , F y 2 , =- F 2 , . 8/1/2008 [tsl9 1/6] Coulomb Force in Two Dimensions (1b) Components of resultant force: F x = F x 1 , + F x 2 , = 3 . 97 10 7 N , F y = F y 1 , + F y 2 , =- 2 . 77 10 7 N . Magnitude of resultant force: F = q F 2 x + F 2 y = 4 . 84 10 7 N . Direction of resultant force: = arctan( F y /F x ) =- 34 . 9 . 8/1/2008 [tsl325 2/6] Coulomb Force in Two Dimensions (2) The unknwon point charges q 1 , q 2 exert a force F = 2 N on the known point charge q = 1 nC. This force is directed in the positive y-direction as shown....
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This note was uploaded on 04/30/2008 for the course PHYS 204 taught by Professor Andrevantonder during the Spring '07 term at Rhode Island.

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9-13. Coulomb Force in Two Dimensions - Coulomb Force in...

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