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A particles is projected with speed u at...

A particles is projected with speed `u` at an angle `theta` with horizontal particle explodes at highest point of its path into two equal fragments one of fragment moving up straight with a speed `u`. The difference in time in which the particles fall on ground. (Assume it explodes at maximum height `H`)

A

`(2u)/(g)`

B

`u/g sqrt(u^(2)-2gH)`

C

`1/(2g) sqrt(u^(2)+2gH)`

D

`2/g sqrt(u^(2)+2gH)`

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The correct Answer is:
A
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