Answer:
E = 216 joules
Step-by-step explanation:
The given equation is
E = [tex]\frac{m*v^{2} }{2}[/tex] ............(i)
Here
m = 3 kg
v = 12 m/s
Putting the given values in equation (i)
E = [tex]\frac{3*12^{2} }{2}[/tex]
E = [tex]\frac{3*144}{2}[/tex]
E = [tex]\frac{432}{2}[/tex]
E = 216 kg m² /s²
or
E = 216 joules
