The cars on an amusement-park ride travel at a constant velocity of 4.0 m/s on a circular track that has a radius of 4.0 m. What is the magnitude of each car's centripetal acceleration? 16 m/s2 4.0 m/s2 1.0 m/s2 8.0 m/s2
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We know the formula for centripetal acceleration is $a_c = \frac{v^2}{r}$, where $a_c$ is the centripetal acceleration, $v$ is the velocity, and $r$ is the radius of the circle. Show more…
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