1.

A gun is firing bullets with velocity `v_0` by rotating it through `360^@` in the horizontal plane. The maximum area covered by the bullets is

Answer» The maximum area will be equal to the area of the circle with radius equal to the maximum range of projectile.
Maximum area, `pi r^2 = pi (R_(max))^2 = pi ((u^2)/(g^2)) = pi (u^4)/(g^2)`
`[As r = R_(max) = u^2//g for theta = 45^@]`.


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