A child is on a object that is spinning. How can he increase the system’s rotational momentum?

Question

a) Move away from center
b) Move toward center
c) Move in opp. direction to motion
d) none of the above

 

what's the answer???????????

Answer 1

Have you seen an ice skater spinning? Moving the arms in makes the spin faster. To slow down the skater moves the arms out. So what do you think is the answer?