In circular motion at radius r and speed v, the centripetal acceleration is:
Av/r
Bv²/r
Cr/v
Dmv²
Answer & 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.
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