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Two shells are fired from cannon with sp...

Two shells are fired from cannon with speed `u` each, at angles of `alpha` of `beta` respectively with the horizontal.The time interval between the shots is `T`.They collide in mid air after time `t` from the first shot.Which of the following conditions must be satisfied?

A

`alphagtbeta`

B

`t cos alpha=(t-T) cos beta`

C

`(t-T) cos alpha =tcos beta`

D

`(u sin alpha)t-1//2 gt^(2)=(u sin beta)(t-T)-(1//2)g(t-T)^(2)`

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A,B,D
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FIITJEE-KINEMATICS-ASSIGNMENT PROBLEMS (OBJECTIVE) LEVEL-II
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