A boy runs directly toward the right as shown, and jumps onto a merry-go-round (MGR) which
is initially at rest.
He lands at the position of the blue dot, which is a distance d= m
from the center of the MGR.
The boy has a mass m= kg and runs with a speed of v0= m/s.
The MGR has a mass of M= kg and a radius R= m.
What angular speed does the MGR + boy have after the boy lands?