InterviewSolution
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InterviewSolution
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Two particles A and B are projected from the same point with the same velocity of projection but at different angles `alpha `and `beta` of projection, such that the maximum height of A is two-third of the horizontal range of B. then which of the following relations are true?A. `3(1-cos 2alpha)=8sin 2beta`B. Range of A=maximum height of BC. Maximum vlaue of `beta` is `(1)/(2)sin^(-1)(3)/(4)`D. Maximum horizontal range of A `=(u^(2))/(g)` and this occurs when `beta=(1)/(2)sin^(-1)(3)/(8)` |
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Answer» Correct Answer - a,c,d `(u^(2)sin^(2)alpha)/(2g)=(2)/(3)(u^(2)sin 2beta)/(g)` `sin^(2)alpha=(4)/(3)xx2sin beta.cosbeta` `((1-cos2alpha))/(2)=(4)/(3) sin 2beta` `beta_("max")=sin^(-1)((3)/(4))` |
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