Two projectiles are fired from the ground with the same initial speeds from the same point at angles (45^° + α…

Question

Two projectiles are fired from the ground with the same initial speeds from the same point at angles $\left(45^\circ + \alpha\right)$ and $\left(45^\circ - \alpha\right)$ with the horizontal direction. The ratio of their times of flights is:

A
$1$
B
$\frac{1 - \tan \alpha}{1 + \tan \alpha}$
C
$\frac{1 + \sin 2\alpha}{1 - \sin 2\alpha}$
D
$\frac{1 + \tan \alpha}{1 - \tan \alpha}$

Accepted Answer

D. $$\frac{1 + 	an \alpha}{1 - 	an \alpha}$$

Answer

A. $$1$$

Answer

B. $$\frac{1 - 	an \alpha}{1 + 	an \alpha}$$

Answer

C. $$\frac{1 + \sin 2\alpha}{1 - \sin 2\alpha}$$

Answer & step-by-step solution

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