# Magnitude and direction of the electrostatic

Hello, I'm new in this forum. I hope you can help me in my homework. thank you

## Homework Statement

The given is write in my attachment picture.

## Homework Equations

Find the magnitude and direction of the electrostatic at q4

If they are given equal mass of 1 kg, find the gravitational force at q1+q2, q1+q3, q2+q3.

## The Attempt at a Solution

I cannot attempt to try a solution because I don't know how to find the distance starting from q4.

## The Attempt at a Solution

#### Attachments

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I cannot attempt to try a solution because I don't know how to find the distance starting from q4.
You need to be given the distances involved, or at least enough information so you can figure them out. (Unless they expect you to treat it as a scale diagram and measure the distances.) Are you sure you've posted the entire problem exactly as given, word for word?

You need to be given the distances involved, or at least enough information so you can figure them out. (Unless they expect you to treat it as a scale diagram and measure the distances.) Are you sure you've posted the entire problem exactly as given, word for word?
Yes Sir I post all the given in my attachment picture. I'm confused because the only given distance is 100cm in the trapezoid.