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Question

A stone tied to a string is whirled in a circle. As it is revolving, the rope suddenly breaks.Then :

A
The stone flies off tangential to the circle of rotation
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B
The stone moves radially inward
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C
The stone moves radially outward
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D
The motion of the stone depends upon its velocity
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Solution

The correct option is A The stone flies off tangential to the circle of rotation
When a stone is going around a circular path, the instantaneous velocity of stone is acting as tangent to the circle. When the string breaks, the centripetal force stops to act. Due to inertia, the stone continues to move along the tangent to circular path. So, the stone flies off tangentially to the circular path

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