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A stone of mass 500g is attached to a string of length 50 cm which will...

A stone of mass 500g is attached to a string of length 50 cm which will break if the tension exceed 20N. The stone is whirled in a vertical circle. The angular speed is slowly increased until the string breaks.

Draw a diagram to show the forces acting on the stone in a vertical circle when it is at its higest and lowest points.

By suggesting a reason for your answer, state in what position along the vertical circular path is the string MOST likely to break and its angular speed at that time.

Science   Advanced-Physics   
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