A sphere 15 suspended by a thread of length l. What minimum horizontal velocity has to be imparted the ball for it to reach the height of the suspension

Question:

2.A sphere 15 suspended by a thread of length l. What minimum horizontal velocity has to be imparted the ball for it to reach the height of the suspension

Options :

a) gl
b) 2gl
c) √gl
d) √2gl

Answer :

d) √2gl

Answer Steps :

Diagram :-

Solution :-

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