For a particle rotating in a vertical circle with uniform speed, the maximum and minimum tension in the string are in the ratio 3 : 1 . If the radius of the vertical circle is 5 m, the speed of the re

Question

For a particle rotating in a vertical circle with uniform speed, the maximum and minimum tension in the string are in the ratio $3 : 1$ . If the radius of the vertical circle is 5 m, the speed of the revolving body is: (Take $g = 10$ m/s²)

Options:

Answer:

A

Solution:

$\frac{v ^{2} / r + g}{v ^{2} / r - g} = 3$
gives
$v^{2} = 2 g r = 100$
so
$v = 10 m/s .$
Option A.

TestHub · Accepted Answer

v 2 / r − g v 2 / r + g ​ = 3 gives v 2 = 2 g r = 100 so v = 10 m/s . Option A.

Physics - NLM Question with Solution | TestHub

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