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Nancy13
 one year ago
What is the centripetal force of an object undergoing uniform circular motion when its radius is doubled and its speed remains constant?
A. the same as before
B. twice as great as before
C. half as great as before
D. four times as great as before
Nancy13
 one year ago
What is the centripetal force of an object undergoing uniform circular motion when its radius is doubled and its speed remains constant? A. the same as before B. twice as great as before C. half as great as before D. four times as great as before

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ivancsc1996
 one year ago
Best ResponseYou've already chosen the best response.0Well the equation is\[F _{c}=\frac{ mv ^{2} }{ r } \rightarrow F _{c} \alpha r ^{1} = F _{c}\alpha \frac{ 1 }{ r }\] Which is the same as saying that as the radius (r) gets bigger, the centripetal force (Fc) gets smaller by the same amount. So if the radius is dobled then the centripetal force is half of the original. So the answer is: C. half as great as before

Nancy13
 one year ago
Best ResponseYou've already chosen the best response.0i love you :3 thanks! :D
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