- #1

Lilian Chan

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## Homework Statement

link: https://ibb.co/Xy9s6DR

What is the magnitude of this force?

## Homework Equations

Coulomb's Law

Trig equations

## The Attempt at a Solution

(.05 m)xcos(60)=0.025m (the distance between the two known charges)

F(between the two known charges)=(9x20^9)(1x10^-9)(10x10^-9)/(0.025)^2=1.44x10^-4

F(that points down)=sin(60)*1.44x10^-4=1.25x10^-4N

The homework system says I got it wrong but I'm not seeing where.