Answer:
When air resistance
is neglected, the trajectory of the projectile is shown by a dotted curve as
shown in Figure. However, when air resistance is taken into account, a part of
its energy is utilized to overcome the force of friction and hence maximum
height attained by the projectile decreases. Moreover, the horizontal component
of the velocity of the projectile decreases continuously, so the projectile
falls steeper than it rises up. The trajectory of such projectile is shown by
solid curve.
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