A girl jogs around a horizontally circle with a constant speed. She travels one fourth of a revolution, a distance of 25 m along the circumference of the circle, in 5.0 s. The magnitude of her acceleration is:
A) 0.31 m/s2
B) 1.3 m/s2
C) 1.6 m/s2
D) 3.9 m/s2
E) 6.3 m/s2
Correct Answer:
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