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Two particles of same mass are projected...

Two particles of same mass are projected simultaneously with same speed `20 ms^(-1)` from the top of a tower of height 20m. One is projected horizontally. The maximum height attained by centre of mass from the ground will be `(g=10 ms^(-2))`

A

`10 sqrt(2)m`

B

25 m

C

`25 sqrt(2)m`

D

5 m

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The correct Answer is:
B
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