Answer:
Option C
303 J
Explanation:
Energy can neither be created nor destroyed but only transformed from one state to the other.
Initial [tex]KE=0.5mv^{2}=0.5*0.212*84^{2}=747.936 J[/tex]
Initial potential energy=mgh but since h=0 then energy is 0
Final potential energy=mgh=0.212*9.81*214=445.06008 J
Considering that initial energy is 747.936+0=747.936 J, final energy should also be the same. The final kinetic energy is the difference between total sum of energy and potential energy
[tex]KE=747.936-445.06008=302.87592\approx 303 J[/tex]
