A 24.5-kg child is standing on the outer edge of a horizontal ...

[FButt]

A 24.5-kg child is standing on the outer edge of a horizontal merry-go-round that has a moment of inertia of about a vertical axis through its center and a radius of 2.40 m.
 
  The entire system (including the child) is initially rotating at 0.180 rev/s. Find the angular velocity if the child moves to a new position 1.10 m from the center of the merry-go-round.

Question 2

A 0.588-m string is tightly clamped at both ends. If the lowest standing wave frequency of the string is how fast do waves travel on this string?
 
  A) 475 m/s B) 582 m/s C) 383 m/s D) 724 m/s

[ryrychapman11]

Answer to Question 1

0.200 rev/s

Answer to Question 2

C