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A body is thrown from ground for horizon...

A body is thrown from ground for horizontal range 100 m. If the body breaks into two fragments of mass in the ratio `1 : 2` at the highest point and smaller mass stops there and comes vertically downward, then horizontal range of the centre of mass of the body is

A

80 m/s

B

8 cm/s

C

800 m/s

D

8 m/s

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