A 50 c charge is 10m from a -20c charge what is the

Question

A 5.0 C charge is 10m from a -2.0C charge. What is the electrostatic force on the positive charge?

1. 9.0X10^8 N toward neg charge

2. 9.0X10^8 N away from the neg charge

3. 9.0X10^9 N toward the negative charge

4. 9.0X10^9 N away from the neg charge

 

5. none of these