if spot A and B are separated two meters and they move untill they collide theyre not really moving just the frame of reference shrinks till they collide, just check dicothomy:

frame shrinks to half in half second to quarter in next quarter of second to octant in next eight of second by second two they will have collided, like this you need no time in your frame, time would be the effect of the shriniking of the frame and gravity inertia, the apple doesnt move earth inflates and caugths the apple