A 50 g bullet is fired at 400 m/s. What is its kinetic energy?
Question 1
Q1. A 50 g bullet is fired at 400 m/s. What is its kinetic energy?
Answer: 4000 J
Explanation: KE = ½mv² = ½ × 0.05 kg × (400 m/s)² = 4000 J. Option B fails due to miscalculation.