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MHT CET202014 Oct 2020Morning ShiftPhysicsMotion in Two DimensionsActual

Two stones of masses m and 3 ~m are whirled in horizontal circles, the heavier one in radius ( r 3 ) and lighter one in radius ' r ^ . The tangential speed of lighter stone is 'n' times that of the value of heavier stone, when they experience same centripetal force. The value of n is

Options

  1. A2
  2. B3
  3. C1
  4. D4

Correct answer

B. 3

Step-by-step solution

Centripetal force = mV ₁² r = 3 mV ₂² ( r 3 ) aligned V ₁² ~V ₂² &=9 V ₁² ~V ₂² &=3 aligned

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