Units and dimensions — SI unit of angular acceleration Identify the correct SI unit for angular acceleration (rate of change of angular velocity). Choose the correct option.
Mechanical Engineering
Engineering Mechanics
Difficulty: Easy
Choose an option
Answer
Correct Answer: rad/s2
Explanation
ConceptAngular acceleration α = dω/dt. Angular velocity ω is in rad/s, so α is in rad/s2.
Why the others are wrong
- N·m is torque (unit of moment).
- m/s is linear velocity.
- m/s2 is linear acceleration.
Final Answerrad/s2