Suppose a player hits several baseballs. Which baseball will be in the air for the longest time?

$A$ fighter plane,flying horizontally with a speed of $360 \text{ km/h}$ at an altitude of $500 \text{ m}$,drops a bomb for a target straight ahead of it on the ground. At what approximate distance ahead of the target should the bomb be dropped? Assume that acceleration due to gravity $g = 10 \text{ m/s}^2$. Neglect air drag.

The trajectory of a projectile in a vertical plane is $y = \alpha x - \beta x^2$,where $\alpha$ and $\beta$ are constants and $x$ and $y$ are respectively the horizontal and vertical distances of the projectile from the point of projection. The angle of projection $\theta$ and the maximum height attained $H$ are respectively given by:

The path of a projectile is given by the equation $y = ax - bx^2$,where $a$ and $b$ are constants,and $x$ and $y$ are the horizontal and vertical distances of the projectile from the point of projection,respectively. The maximum height attained by the projectile and the angle of projection are respectively:

$A$ body is projected from the ground obliquely. During its downward motion,the power delivered by gravity to it:

For a given angle of the projectile,if the initial velocity is doubled,the range of the projectile becomes: