The direction of projectile at certain instant is inclined at angle `alpha` to the horizontal. After t sec, if it is inclined at an angle `beta` then the horizontal component of velocity is

Options

A. `(g)/(tan alpha - tan beta)`
B. `("gt")/(tan alpha - tan beta)`
C. `(t)/(g(tan alpha - tan beta))`
D. `("gt")/((tan alpha + tan beta))`

Answer

B