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a sphere of r...

Question

a sphere of radius 25 cm and mass 1 kg is hung by a string of negligible mass and length 40 cm ,to the wall from the centre of the sphere the tension in the string is ?

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Solution

$T h e t e n s i o n o n t h e s t r i n g i s T = m g i . e . T = 1 \times 9.8 = 9.8 N$

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