Current Attempt in Progress

The figure shows a device that can be used to measure the speed of a bullet. The device consists of two rotating disks, separated by a distance of $d=0\mathrm{.}759$ m $,$ and rotating with an angular speed of $89\mathrm{.}4ra\frac{d}{s}.$ The bullet first passes through the left disk and then through the right disk. It is found that the angular displacement between the two bullet holes is $=0\mathrm{.}379$ rad. From these data, determine the speed of the bullet.

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