= Transverse miss on a rotating platform
{title2=$d\simeq4\omega a^2/v$}
A projectile thrown across a rotating disk's diameter at <speed> $v$ relative to the thrower inherits the thrower's tangential <velocity>. During its approximate flight time $2a/v$, a receiver at the opposite rim moves tangentially in the opposite direction. The relative sideways <displacement> is consequently $4\omega a^2/v$ to leading order in $a\omega/v$. Integrating the <Coriolis force> in the disk's frame gives the same result.
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