Question Detail
Question
The kinetic energy of a 7.3 kg steel ball traveling at 18.0 m/s ______ J.
Correct Answer
Option A is the correct answer.
Detailed Explanation
KE = ½mv² = 0.5 × 7.3 × (18.0)² = 0.5 × 7.3 × 324 = 0.5 × 2365.2 = 1182.6 J ≈ 1.2 × 10³ J.
Hint
KE = ½mv².