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SAT® Subject Test in Physics

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Moderate

Bikes Rounding Turn

SATPHY-X1L9KY

A person on a yellow bicycle rounds a circular turn of radius, $r$ with a speed $v$. Another person on a green bicycle rounds a different circular turn with a radius $3r$ at a speed $3v$.

Which bicycle experiences a greater acceleration, and how many times greater?

A

yellow–9 times greater

B

green–9 times greater

C

yellow–3 times greater

D

green–3 times greater

E

same acceleration for each bicycle