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MCQ
For a body to just complete a vertical circle of radius 10 m, the minimum speed at the top is (g = 10 m/s^2):
Unit-4 Dynamics-2
A 10 m/s
B 20 m/s
C 5 m/s
D 100 m/s
Explanation

v = sqrt(g*r) = sqrt(10 x 10) = 10 m/s.

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