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A ball is thrown vertically upwards from the ground. It crosses a point at the height of 25 m twice at an interval of 4 second. The ball was thrown with the velocity of (g = 10 m/s2

(a) 20 m/s 

(b) 25 m/s 

(c) 30 m/s 

(d) 35 m/s

1 Answer

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Best answer

Correct option (c)

Explanation:

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