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A cannon fires two shells successively w...

A cannon fires two shells successively with velocity `250 m s^(-1)` at angles `60^@` and `45^@` with the horizontal in the same vertical plane one after the other . What should be the interval between the firings so that they may hit the same target simultaneously ?

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The correct Answer is:
150.5 m at `33.6^@`, 75.25 m from the centre of the hall
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