(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Hi, Im working on the following question.

A 64 µC charge is located 30cm to the left of a 16 µC charge. What is the resultant force on a -12 µC charge positioned exactly 50mm below the 16 µC charge?

2. Relevant equations

Coulombs law

3. The attempt at a solution

I see a right triangle So I tried to solve using the vector components as follows

Fac=9.0e9(65x10e-6 * 12x10e-6)/(.3^2+.05^2) = 74.72C

Fbc = 9.0e9(16x10e-6 * 12x10e-6)/(.05^2) = 691.2C

For the rest, I'm not sure if I'm attacking this thing properly to solve for the vectors? I've tried at least 6 times... but no luck.

I could use a little direction...I attached a picture of the problem. My be helpful if it show's up.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Electrostatic force-Coulombs law

**Physics Forums | Science Articles, Homework Help, Discussion**