Choose the correct alternative $(s)$
If the greatest height to which a man can throw a stone is $h,$ then the greatest horizontal distance upto which he can throw the stone is $2h$.
The angle of projection for a projectile motion whose range $R$ is n times the maximum height is $\,\,tan^{-1} (4/n)$
The time of flight $T$ and the horizontal range $R$ of a projectile are connected by the equation $gT^2 = 2Rtan\theta$ where $\theta$ is the angle of projection.
All of the above
A body is thrown with a velocity of $9.8 \,m/s$ making an angle of $30^o$ with the horizontal. It will hit the ground after a time ....... $\sec$
A gun can fire shells with maximum speed $v_0$ and the maximum horizontal range that can be achieved is $R_{max} = \frac {v_0^2}{g}$. If a target farther away by distance $\Delta x$ (beyond $R$) has to be hit with the same gun, show that it could be achieved by raising the gun to a height at least $h = \Delta x\,\left[ {1 + \frac{{\Delta x}}{R}} \right]$.
A projectile cover double range as compare to its maximum height attained. The angle of projection is
At what angle the particle should be projected to cover maximum range ?
The angle of projection at which the horizontal range and maximum height of projectile are equal is