Question

A large number of bullets are fired in all directions with same speed u. What is the maximum area on the ground on which these bullets will spread

• A.
• B.
• C.
• D.

Answer 1

The correct option is B

The maximum area will be equal to area of the circle with radius equal to the maximum range of projectile

Maximum area $\pi r^2=\pi (R_{max}{)}^2=\pi {\left(\frac{u^2}{g}\right)}^2=\pi \frac{u^4}{g^2}[Asr=R_{max}=\frac{u^2}{g}for\theta ={45}^{\circ }]$