Magic Stone + Enlarge [duplicate]


Can a thrown magic pebble be a target to the enlarge spell? For that matter, can anything from an arrow to a hurled table become enlarged while in mid-air and if so how would you suggest fantasy physics would work on this?

The enlarge spell states that the target doubles in all sizes but the weight is times eight. Would the (stone, for example) maintain its velocity and hit the target with 8x its weight? We all know that F = m*a.
How would you suggest to handle this DMG wise?

As always thanks in advance my fellow Dungeoneers.