A stone of mass m is tied to a string and is moved in a vertical circle of radius r making n revolution per minute. The total tension in the string when the stone is its lowest point is.

Question:

4.A stone of mass m is tied to a string and is moved in a vertical circle of radius r making n revolution per minute. The total tension in the string when the stone is its lowest point is.

Options :

a) m[g+((π^2n^2L^2)/60)]
b) m[g+n^2L^2]
c) m[g+4π^2L]
d) m[g+((π^2n^2L^2)/900)]

Answer :

d) m[g+((π^2n^2L^2)/900)]

Answer Steps :

Solution :-

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