Physics

Problem

0.020\,\text{kg}

bullet traveling at

300\,\text{m/s}

strikes the rim of a stationary uniform disk of mass

4.0\,\text{kg}

and radius

0.20\,\text{m}

. The bullet embeds in the disk at the rim. Immediately after the collision, what is the angular speed of the bullet–disk system about the disk’s center? (Assume the disk can rotate freely about its central axis.) a)

7.5\,\text{rad/s}

38\,\text{rad/s}

15\,\text{rad/s}

22\,\text{rad/s}

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