about B737 flaps setting when missed approach

[CleoB737NG]

Dear ALL,

Question: when pass the DH and can not see runway, then we miss approach, hit TO/GA flaps 15 then go around thrust, positive rate gear up, 400HDG SEL.... but at this time, we lost one Engine. we need single engine miss approach use flaps 1, well at this situation, the speed not reach the speed (170) knots to move the flaps, Can we move flaps up to position flaps 1 immediately or not?

question 2:
when flaps at 1 position, is drag larger than pull? so what about flaps 5,15, 30 ,40's ? I remember when flaps at 1, and 5. the drag <pull. when flaps at position 15 to 40, the pull> drag.


THanks