For this achievement, I recommend that you have the following...
Nerd Repellant (gadget)-this will rid the level of any nerds making them a non issue
Freeze-O-Matic (gadget)-if you happen to die really close to the 2km goal for this achievement, this perk will have you sliding an extra few meters
750 meter head start (consumable)-most of the time the 750 meter head start will cause you to go that far while not collecting any coins. I found that every time I used the 1500 meter head start, I would be collecting coins which you need to avoid for this achievement
Final Blast (consumable)-again, good if you need an extra push to the 2km, but there is a chance that this will cause you collide with coins
Revive (consumable)-if after using all of the above items you are still short of the goal, use this to get another life and hopefully get the achievement
You can use machines during your run--thanks to
xPut Name Herex and
grex9101 for confirming this.