A bob is whirled in a horizontal plane by means of a string with an initial speed of $\omega$ rpm. The tension in the string is T. If speed becomes 2 $\omega$ while keeping the same radius, the tension in the string becomes:
A
$\frac{T}{4}$
B
$\sqrt{2}T$
C
T
D
4T

Question

A bob is whirled in a horizontal plane by means of a string with an initial speed of $\omega$ rpm. The tension in the string is T. If speed becomes 2 $\omega$ while keeping the same radius, the tension in the string becomes:

A

$\frac{T}{4}$

B

$\sqrt{2}T$

C

T

D

4T

Accepted Answer

4T

Answer

$ \frac{T}{4} $

Answer

$ \sqrt{2}T $

Answer

T

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