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A small stone of mass 100 g in rotated I...

A small stone of mass 100 g in rotated I a verticlal circle of radius 40 cm. What is the minimum speed needed at the lowest point for looping the loop? Also find the tension in the string at this point `(g=10ms^(-2)).`

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Verified by Experts

The correct Answer is:
`sqrt((2T-mg)r)/m, 2T`
`2T = mg + mv^(2)//l, V = sqrt((2T-mg)l//m)`, Force = 2T
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