Physics Two Dimensional Motion Question 326

Question: A particle of mass M moves with constant speed along a circular path of radius r under the action of a force F.Its speed is

[MP PMT 2002]

Options:

A) $ \sqrt{\frac{r,F}{m}} $ B) $ \sqrt{\frac{F}{r}} $ C) $ \sqrt{F,m,r} $ D)$ \sqrt{\frac{F}{m,r}} $

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Answer:

Correct Answer: A

Solution:

$ F=\frac{mv^{2}}{r} $

Therefore $ v=\sqrt{\frac{rF}{m}} $