An object moving at a constant speed requires 6.0 s to go once around a circle with a diameter of 4.0 m. What is the magnitude of the instantaneous acceleration of the particle during this time?
A. 2.2 m/s2
B. 2.7 m/s2
C. 3.3 m/s2
D. 3.8 m/s2
E. 4.4 m/s2
Answer: A
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