Per NCERT, an object with mass 2 kg moving at 10 m/s has what KINETIC ENERGY?
A10 J
B20 J
C100 J (= ½ × 2 × 10²)
D200 J
Answer & Solution
Correct answer: C. 100 J (= ½ × 2 × 10²)
Per NCERT, KE = ½ × 2 × (10)² = ½ × 2 × 100 = 100 J. The other answers misapply the formula.
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