Answer:
32000joule.
Explanation:
given
mass. (m)=160kg
speed (v)=20m/s
now
kinetic energy =1/2 (mv²)=1/2 ×{160×20²}=32000joule.
Change in state(from liquid to solid) and change in colour I believe.
If it's Kepler's law of equal areas you're talking about,
then the first of the four statements is true.
