InterviewSolution
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InterviewSolution
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Two balls `A and B` are thrown with speeds `u and u//2`, respectively. Both the balls cover the same horizontal distance before returning to the plane of projection. If the angle of projection of ball `B is 15^@` with the horizontal, then the angle of projection of `A` is.A. `sin^(-1)(1/8)`B. `1/2sin^(-1)(1/8)`C. `1/3sin^(-1)(1/8)`D. `1/4sin^(-1)(1/8)` |
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Answer» Correct Answer - b `(u^(2)sin2 theta)/g=((u//2)^(2) sin 30^(@))/g=(u^(2))/(8g)` `:. sin 2 theta=1/8` or `theta=1/2 sin^(-1)(1/8)` |
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