A skydiver jumps from a stationary helicopter and reaches a steady vertical speed. She then opens her parachute.
Which statement about the falling skydiver is correct?

A As her parachute opens, her acceleration is upwards.
B As she falls at a steady speed with her parachute open, her weight is zero.
C When she accelerates, the resultant force on her is zero.
D When she falls at a steady speed, air resistance is zero.

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.)

d.7.5cm is your answer

the displacement produced by the body.  

the amount of force subjected to the body.  

the angle between the direction of force and displacement