-- Multiply each side of the formula by 2
-- Then divide each side by t
-- Then subtract V(i) from each side.
"Vaporization" means "becoming vapor".
a). No. Changing from solid to liquid.
b). No. Becoming solid.
c). Yes.
d). No. Becoming liquid.
Acceleration = force/mass
1/4
s=ut+1/2at^2
0*4+1/2*1/4*4^2
1/2*1/4*16
1/2*4
=2

(500kg) ×

= 4000J
V = √(4000 ÷ 250) = 4 m/s