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 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 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 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

• A. $\sqrt{\frac{rF}{m}}$
• B. $\sqrt{\frac{F}{r}}$
• C. $\sqrt{Fmr}$
• D. $\sqrt{\frac{F}{mr}}$

Answer 1

Answer: (A)

$\sqrt{\frac{rF}{m}}$

Answer 2

Centripetal force $F = \frac{mv^{2}}{r}$ $\therefore v = \sqrt{\frac{rF}{m}}$