Question

1.
A stone of mass one kilogram is tied to the end of
a string of length 5 m and whirled in a vertical
circle. What will be the minimum speed required
at the lowest position to complete the circle?
[Given: g=9.8 m/s?]​

Answer 1

Answer:

15.66ms. Explanation: enter image source here. For the stone to just complete a vertical circle, tension in the string will be ...