X=1/2 at^2
3.1=1/2 a *0.64
a=9.68
v=at
v=0.8*9.6875=7.75
Melting, of course. Just as how an ice cube melts to water.
400m in 32sec: (400/32)>12.5meters per second>
(12.5)(60)(60)(1/1000)=45km per hour
Constant speed would mean that the two forces are equivalent
Nuclei of uranium atoms split apart is . . . . <u><em>known as nuclear fission</em></u>
