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A juggler keeps on moving four balls in ...

A juggler keeps on moving four balls in the air throwing the balls after regular intervals. When one ball leaves his hand `("speed" = 20 ms^-1)` the positions of other balls (height in m) `("Take" g = 10 ms^-2)`.

A

10, 20, 10

B

15, 20, 15

C

5, 15, 20

D

5, 10, 20

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The correct Answer is:
B
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