InterviewSolution
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InterviewSolution
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If the range of a gun which fires a shell with muzzle speed V is R , then the angle of elevation of the gun isA. `cos^(-1)((v^(2))/(Rg))`B. `cos^(-1)((Rg)/(v^(2)))`C. `(1)/(2)sin^(-1)((v^(2))/(Rg))`D. `(1)/(2)sin^(-1)((Rg)/(v^(2)))` |
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Answer» Correct Answer - D `R=(v^(2)sin 2 theta)/(g) rArr sin2 theta=(gR)/(v^(2))` `rArr 2 theta=sin ^(-1)(gR)/(v^(2))rArr theta=(1)/(2)sin^(-1)(gR)/(v^(2))` |
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