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MHT CET202012 Oct 2020Morning ShiftPhysicsLaws of MotionActual

A heavy mass is attached at one end of a thin wire and whirled in a vertical circle. The chances of breaking the wire are maximum when

Options

  1. Athe wire is horizontal.
  2. Bthe mass is at the lowest point of the circle.
  3. Cthe wire makes an angle of 60^ with the horizontal.
  4. Dthe mass is at the highest point of the circle.

Correct answer

B. the mass is at the lowest point of the circle.

Step-by-step solution

When the mass is at the lowest point. Explanation The Force acting on the Particles will be maximum in case of the Vertical circle when the Force acting will be in the direction of its tension force of string. When this situation arises then, Tension ( T )= mv ² r Force will be maximum at this position and there will likely be more chances to break. This case will be there when the mass is at the lowest position. Option (b). is correct.

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