What is the kinetic energy of an object that has a mass of 50 point 0 kilograms and a velocity of 18 meters per second ?
Answer
A
450 cap j
B
900 cap j
C
16 comma 000 cap j
D
8 comma 100 cap j
Explanation
Kinetic energy is calculated with KE = ½mv². Substituting the mass of 50.0 kg and velocity of 18 m/s gives KE = ½ × 50.0 × 18² = 8,100 J, so the correct choice is 8,100 J.
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