Q. The maximum range of a gun on horizontal terrain is $16\ km$. If $g = 10\ m/s^{2}$. What must be the muzzle velocity of the shell
A) $200\ m/s$
B) $400\ m/s$
C) $100\ m/s$
D) $50\ m/s$
Explanation
(b) $R_{\max} = \frac{u^{2}}{g} = 16 \times 10^{3}$
$\Rightarrow u = 400m/s$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.