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Question: Answered & Verified by Expert
A fighter plane is moving in a vertical circle of radius ' $r$ '. Its minimum velocity at the highest point of the circle will be
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Options:
  • A $\sqrt{3 g r}$
  • B $\sqrt{2 g r}$
  • C $\sqrt{g r}$
  • D $\sqrt{g r / 2}$
Solution:
2065 Upvotes Verified Answer
The correct answer is: $\sqrt{g r}$
Minimum velocity at the highest point of vertical circle $\mathrm{VA}=\sqrt{\mathrm{gr}}$

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