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NEET2024PhysicsMotion in Two DimensionsActual

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

Options

  1. A4T
  2. BT/4
  3. C2 T
  4. DT

Correct answer

A. 4T

Step-by-step solution

T=m ^2 aligned & T^ =m (2 )^2 & T^ =4 T aligned

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