As shown in the figure, an
view of a thin uniform rod of length 0.80 m and
=1.0 kg rotating horizontally at angular speed 20 rad/s about an axis through its center.
A particle of mass M/3 initially attached to one end is ejected from the rod by a small explosion
and travels along a straight path that is perpendicular to the rod at the instant of ejection. The
particle's final speed
(after the ejection) is 11.0 m/s.
= 1.0 kg)
) What is the angular momentum (magnitude and
direction) of the particle about the center of rod at the
moment before the ejection?
What is the final angular velocity (magnitude and direction) of the rod?
) What is the change in kinetic energy of the system (the rod plus particle)?