Question

Question 30:
4 points
A thin uniform rod of mass 4 kg and length 2 m is
lying horizontally on a smooth surface. A small stone
of mass 1 kg moving on that surface with 10 ms-1
strikes the rod perpendicularly at its one end and get
stopped. The velocity of centre of mass of the rod will
be
(1) 10 ms-1
(2) 5 ms-1
(3) 2.5 ms-1
(4) 7.5 ms-1​

Answer 1

Answer:

I think (3) option is right