Question

A projectile is fired to have maximum range of 500 m. Time of flight in this case is

• A. $125s$
• B. $10s$
• C. $5\sqrt{2}s$
• D. $\frac{5}{\sqrt{2}}s$

Answer 1

Answer: (B)

$10s$

We know,

Maximum Range$=\frac{u^2}{g}=500$

$u=50\sqrt{2}$

$T=\frac{\sqrt{2}u}{g}=\frac{\sqrt{2}50\sqrt{2}}{10}=10s$

Option $\text{B}$ is the correct answer