Answer:
16,000 J
Explanation:
Kinetic Energy = [tex]\frac{1}{2}[/tex] × mass × [tex](velocity)^{2}[/tex]
= [tex]\frac{1}{2}[/tex] × 80 × [tex]20^{2}[/tex]
= [tex]\frac{1}{2}[/tex] × 80 × 400
= [tex]\frac{1}{2}[/tex] × 32000
= [tex]\frac{32000}{2}[/tex]
= 16,000 J
