A ball weighs 60 kg, and moves with a velocity v=25 m⋅s-1. Determinate its kinetic energy, in Joules.
Hint: $${\mathtt{E}}$$$${\mathtt{C}}$$ = $${\frac{{\mathtt{m}}}{{\mathtt{2}}}}{\mathtt{\,\times\,}}{{\mathtt{v}}}^{{\mathtt{2}}}$$
+870 
