a projectile is thrown with speed u into air from a point on the horizontal ground at an angle `theta` with horizontal. If the air exerts a constant horizontal resistive force on the projectill then select correct alternative(s).

Options

A. At the farthest point, the velocity is horizontal
B. The time for ascent equals the time for descent
C. The path of the projectile may be parabolic
D. The path of the projectile may be a straight line.

Answer

C, D

Explanation

Here total acceleration `a=sqrt(g^(2)+a_(x)^(2))=` constant, so path may be parabolic or straight line