F = k(Q2*Q1)/(r^2)
The Attempt at a Solution
I asked my teacher and he said that this is an inverse square law. Didn't say anything else. He also mentioned k is constant.
I assume i can plug in random values and see if there is a pattern... k=1 for all
Set 1, q1 = 2, q2 = 4, r = 5
F1 = 8/25
Set 2, q1 = 1 q2 = 5, r = 4
F2 = 5/16
I plugged in random values but i don't really get it.
What is inverse of what? I see that the r is squared and its below the kq1q2. I'm stuck.
Any advice is appreciated.