In the equation for centripetal force, which expression represents the centripetal acceleration of the object?
Answer
A
m over r
B
the fraction with numerator m v squared and denominator r
C
m v squared
D
the fraction with numerator v squared and denominator r
Explanation
Centripetal force is given by F = ma, and for circular motion F = mv²/r. Comparing these expressions, the centripetal acceleration is v²/r, which is choice D.
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