Complicated statement....
(me (research) and contributors)
v2=u2+2
coupled with
F=ma (a=F/m)
Leads roughly to:
(4.3/root(x))ms-1
if velocity is in the neighborhood of
(3/x)ms-1
With time being
v - 4.9t2 = -v - when 4.9t2 = 2v
and
vt = d (distance being 2 in this case). Now, 2 = 3.3x-1.5, and...