Awooden block of mass m resting on a frictionless, horizontal surface is attached to a rigid rod of length script l and of negligible mass. the rod is pivoted at the other end. a bullet of mass m traveling parallel to the horizontal surface and perpendicular to the rod with speed v hits the block and becomes embedded in it.
(a) what is the angular momentum of the bullet–block system about a vertical axis through the pivot? (use any variable or symbol stated above as necessary.) l=
(b) what fraction of the original kinetic energy of the bullet is converted into internal energy in the system during the collision? (use any variable or symbol stated above as necessary.)
? k
ki
=