A 2 kg object is moving at 5 m/s. What is its kinetic energy? (KE = ½mv²)
Answer
25 joules
How to solve it
1
Mass: 2 kg
2
Velocity: 5 m/s
3
KE = ½ × 2 × 5² = ½ × 2 × 25 = 25 joules
Hints
Use formula: KE = ½mv²
Square the velocity first