Two particles of equal masses are revolving in circular paths of radii r1 and r2 respectively with the same speed.
Two particles of equal masses are revolving in circular paths of radii r1 and r2 respectively with the same speed. The ratio of their centripetal forces is
(A) \(\frac{r_2}{r_1}\)
(B) \(\sqrt{\frac{r_2}{r_1}}\)
(C) \(\Big(\frac{r_1}{r_2}\Big)^2\)
(D) \(\Big(\frac{r_2}{r_1}\Big)^2\)
4 views
1 Answers
Answer is (A) \(\frac{r_2}{r_1}\)
F = \(\frac{mv^2}{r}\)
If m and v are constants, then F ∝ \(\frac{1}{r}\)
∴ \(\frac{F_1}{F_2}\) = \(\Big(\frac{r_2}{r_1}\Big)\)
4 views
Answered