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0 votes
2.0k views
in Physics by (70.5k points)

What net force is necessary to keep a 1.0kg puck moving in a circle of radius 0.5m on a horizontal friction less surface with a speed of 2.0 m/s? 

(A) 0 N 

(B) 2.0 N 

(C) 4.0 N 

(D) 8.0 N 

(E) 16 N

1 Answer

+1 vote
by (70.7k points)
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Best answer

Correct option (D) 8.0N

F = mv2/r

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