A body is projected with a velocity $u.$ If the maximum height attained by it is half of its horizontal range, then its range must be 

Three balls of same masses are projected with equal speeds at angle ${15}^0,{45}^0 and {75}^0$ and their ranges are respectively $R_1, R_2$​ and $R_3$ then

Figure shows four paths for a kicked football. Ignoring the effects of air on the flight, rank the paths according to initial horizontal velocity component, highest first

In the graph shown in figure, the time is plotted along $x$ -axis. Which quantity associated with the projectle motion is plotted along the $y$-axis :-

Three projectile $A, B$ and $C$ are thrown from the same point in the same plane. Their trajectories are shown in the figure. Then which of the following statement is true :-