Find the average velocity of a projectile between the instants it crosses half the maximum height. It is projected with a speed u at an angle θ with the horizontal.

Given:
Initial velocity of the projectile = u
Angle of projection = θ



To find: Average velocity of the projectile



Consider the projectile motion in the figure given below.


Capture.PNG


By the symmetry of figure, it can be said that the line joining points A and B is horizontal.
So, there will be no effect of the vertical component of velocity of the projectile during displacement AB.
We know that the projectile moves at a constant velocity
in horizontal direction.
Hence, the average velocity of the projectile is


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