Projectile Motion
1) horizontal speed UcosФ where U is the initial speed by which boy kicked the football and Ф is the angle the kicked made by the ground.
2) Due to UcosФ and its always constant. ( neglecting air resisting )
3) Vertical speed UsinФ / maximum height, where U is the initial speed by which boy kicked the football and Ф is the angle the kicked made by the ground.
4) Due to gravity there is a vertical acceleration.
5) Range. ( maximum distance covered )
