Question

a large number of bullets are fired in all directions with the same speed u then the maximum area on the grounds on which these bullets will spread

Answer 1

Explanation:

bullets initial velocity is u, with this velocity it covered s distance.

v² - u² = 2 x g x s

0 - u² = 2 x - 10 x s

u² = 20 s

s = u² /20

area = π s²

= π u⁴/400 m²