Asked by Des

The radius of the path of an object in uniform circular motion is halved. The centripetal acceleration needed if its speed remains the same is _____.

-half as great,
-the same as before,
-twice as great as before, or
-four times as great as before?

could somebody explain the answer for me?
im unsure about what the answer is.
Answered by Damon
a = v^2/r

a' = v^2/(r/2) = 2 v^2/r = 2 a
Answered by Eternyti
Twice as great before is the answer
Answered by y
DANGGG THIS WAS IN 2015??
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