At t = 0 a 100gm ball is thrown upwards with initial speed `v_(0) = 2` m/s in an open platform elevator which at that time is moving downward with v = 3 m/s and accelerating downward with an acceleration, `a = 3 m//s^(2)`​. A drag force with magnitude `F_"​DRAG"` = 0.8 N acts on the ball. Net force acting on the ball in the frame of the elevator just after it has been thrown is [`g =10 m//^(2)`​] :