Question

A boy of mass 30kg is running with velocity of 3m/s on ground just tangentially to a merry go round which is at rest. It has radius 2m of mass of 120kg and it's radius of gyration is 1m.If the boy suddenly jumps in to the merry go round, the angular velocity acquired by the system is

Answer 1

Answer:

Momentum =30*3=90kgm/s

Explanation:

F=G(m1+m2) /R square

F=G(30+120)/2sqaure

F=G(150/4)

F=G(37.5)N

Answer 2

Answer:

Momentum=30×390kgm/s