# Projectile Mania

2 balls of equal mass $2 \text { kg}$ are kept on flat ground at a distance $D$ from each other. They are thrown towards each other at an angle $\theta$ with a speed $v$. They collide in mid-air elastically. Find the distance between them when they first come back to ground after collision.

Details and Assumptions:

• $D = 80 \text{ m}$, $\theta = 37^\circ$, $v = 50 \text{ m/s}$, $g = 10 \text{ m/s}^{2}$.
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