Answer:
the correct answer is option C
Answer:
vrzjxuxuxjcckhcouvou
Explanation:
gghhjjokjjhghhrjxjxkyxygbjv
Here since both children and merry go round is our system and there is no torque acting on this system
So we will use angular momentum conservation in this

now here we have



Now when children come to the position of half radius
then we will have



now from above equation we have

