Question : For a given velocity, a projectile has the same range 𝑅 for two angles of projection if 𝑡1 and 𝑡2 are the times of flight in the two cases then
(A) t_{1}t_{2}\propto R^{2}
(B) t_{1}t_{2}\propto R
(C) t_{1}t_{2}\propto \dfrac{1}{R}
(D) (C) t_{1}t_{2}\propto \dfrac{1}{R}^{2}
Answer : option (B)
Solution :
