In circular motion at radius r and speed v, the centripetal acceleration is:
- v/r
- v²/r
- r/v
- mv²
Show answer and solution
Correct answer: B. v²/r
a_centripetal = v²/r — directed toward the center.
Alternatively, a = ω²r where ω is angular velocity.
This is the acceleration required to keep the body on its circular path.