I don't understand how to even begin with this problem. Here it is: An arrow, starting from rest, leaves the bow with a speed of 26.0 m/s. If the average force exerted on the arrow by the bow were doubled, all else remaining the same, with what speed would the arrow leave the bow? I do know: Vo = 0 V = 26.0 That's pretty much it. How do I move on from here?