Answer:
final kinetic energy of the hammer is 10 kJ
Explanation:
As we know that there is no non conservative force on the system
So here we can use the theory of mechanical energy conservation
So we will have
[tex]\Delta K + \Delta U = 0[/tex]
here we know that
[tex]\Delta U = - 10 kJ[/tex]
from above expression now
[tex]K_f - K_i - 10 kJ = 0[/tex]
[tex]K_f - 0 = 10 kJ[/tex]
so final kinetic energy of the hammer is 10 kJ
