(a) Projectile motion: When a particle is projected obliquely near the earth surface, it moves simultaneously in horizontal and vertical directions. This type of motion is called projectile motion.
![](https://www.sarthaks.com/?qa=blob&qa_blobid=5901756093340217045)
![](https://www.sarthaks.com/?qa=blob&qa_blobid=15207411884362911224)
Where, u = projected speed
θ = angle at which an object is thrown from the ground.
g = acceleration due to gravity = 9.8 m/s2
Maximum Range: It is the longest distance covered by the object during projectile motion.
When the angle of projection is 45°, the maximum range is obtained.
(b) The motion of the cricket ball in air is essentially a projectile motion. As we have already seen, the range (horizontal distance) of the projectile motion is given by
![](https://www.sarthaks.com/?qa=blob&qa_blobid=9131014846739762121)
This distance is greater than the distance of the boundary line. Hence the ball will cross this line and go for a six.