A juggler maintains four balls in motion,making each of them to rise a height of 20 m from his hand.What time interval should be maintained for the proper distance between them?(take,g=10 ms⁻²)

Options

(a) 3 s
(b) 3/2 s
(c) 1 s
(d) 2 s

Correct Answer:

1 s

Explanation:

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