Q. A missile is fired for maximum range with an initial velocity of $20\ m/s$ . If $g = 10\ m/s^{2}$, the range of the missile is
A) $20\ m$
B) $40\ m$
C) $50\ m$
D) $60\ m$
Explanation
(b) $R_{\max} = \frac{u^{2}}{g} = \frac{(20)^{2}}{10} = 40\ m$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.