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HELP STUCK IN PHYSICS 100PTS!!!

A small piece of putty of mass 27 g and
negligible size has a speed of 2.2 m/s. It makes
a collision with a rod of length 5 cm and mass
78 g (initially at rest) such that the putty hits
the very end of the rod. The putty sticks to
the end of the rod and spins around after the
collision; the putty-rod center of mass CM has
a linear velocity v and an angular velocity ω
about the CM.
(a)What is the angular momentum of the system relative to the CM after the collision?
The rod has a moment of inertia equal to (1/12)MR^2
about its center of mass; consider
the piece of putty as a point mass. Assume
the collision takes place in outer space where
there is no gravitational field and no friction.
Answer in units of kg · m2
/s.
(b)What is the system’s angular speed about the
CM after the collision?
Answer in units of rad/s.
I'm so confused :(

HELP STUCK IN PHYSICS 100PTS!!! A small piece of putty of mass 27 g and negligible-example-1
User RaviRokkam
by
3.0k points

1 Answer

16 votes
16 votes

Answer:

a) 20.65kg

b)4.7rad

Step-by-step explanation:

User Humbalan
by
3.3k points