alleryStart learning →What centripetal acceleration do passengers feel in a car moving at 12 m/s along a curve of radius 2.0 m?
A3 m/s^2
B6 m/s^2
C36 m/s^2
D72 m/s^2
Answer & Solution
Correct answer: D. 72 m/s^2
1. a_c = v^2 / r.
2. a_c = (12 m/s)^2 / 2.0 m = 144 / 2.0.
3. a_c = 72 m/s^2.
_Source: OpenStax Physics (CC BY 4.0), Ch 6 "Circular and Rotational Motion", section 6.2 Uniform Circular Motion_
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