Can someone help me out with a pendulum lab please?​

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

the answer would be c. motion and direction

i hope this : )

pe = weightxheight = 2000x1000=2,000,000joules

there are no contact forces mentioned on the list of choices that you've provided.