A 5 kg object is moving at 4 m/s. What is its kinetic energy?
Question 1
Q1. A 5 kg object is moving at 4 m/s. What is its kinetic energy?
Answer: 40 J
Explanation: KE = ½mv² = ½ × 5 kg × (4 m/s)² = 40 J. Option B fails due to incorrect calculation.