Q. Statement I:A projectile that traverses a parabolic path show deviation from its idealised trajectory in the presence of air resistance.
Statement II:Air resistance affect the motion of the projectile.

 2167  279 Motion in a Plane Report Error

Solution:

In the presence of dissipative forces like air friction which opposes the motion, any object will lose some part of its initial energy and consequently momentum too. Thus a projectile that traverses a parabolic path would certainly show deviation from its idealized trajectory in the presence o f air resistance.