At what angle with the horizontal should a ball be thrown so that the range `R` is related to the time of flight as `R = 5 T^2` ? `(Take g = 10 ms6-2)`.A. `30^@`B. `45^@`C. `60^@`D. `90^@`

At what angle with the horizontal should a ball be thrown so that the

1.	At what angle with the horizontal should a ball be thrown so that the range `R` is related to the time of flight as `R = 5 T^2` ? `(Take g = 10 ms6-2)`.A. `30^@`B. `45^@`C. `60^@`D. `90^@`
Answer» Correct Answer - B (b) `(R)/(T^2) = g ((sin 2 theta)/(4 sin^2 theta)) = (g)/(2) cot theta = 5 cot theta` Given `(R)/(T_2) = 5 , Hence, 5 = 5 cot theta` or `theta = 45^@`.

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At what angle with the horizontal should a ball be thrown so that the range `R` is related to the time of flight as `R = 5 T^2` ? `(Take g = 10 ms6-2)`.A. `30^@`B. `45^@`C. `60^@`D. `90^@`

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