Question

A large number of bullets are fired in all directions with same speed u. The maximum area on the ground covered by these bullets will be

Answer 1

Pie×r² where r is distance 0° from horizontal

Answer 2

Given :-

Speed of bullets = u m/s

As we know that bullets will move in Projectile.

Area covered = πr²

For Maximum Area,

r = R(max) = u²/g (When Ø = 45° then R is max).

Maximum Area = πr²

M. A. = π (u²/g)²

M.A. = πu⁴/g²

Hence,

Maximum Area covered = πu⁴/g².