DC Physics logo HOME | Practice Problems } Monthly Features | Textbook Errata | Humor | About DC Physics

HELP HOME PAGE

Make a Practice Test

Some Hints & Solutions

Rotation: Angular Momentum

Problem #: 2 | Variant #: 3

A 23.3 kg child is sitting on the edge of a merry-go-round of radius 2.22 m while it is spinning at a rate of 1.753 rpm. If the child moves to the center the merry-go-round will rotate at 2.3 rpm. What is the mass of the merry-go-round? (Hint: use conservation of angular momentum)

kg

Get a Random Angular Momentum Question

Try a Minitest: 6 problems of this type


NOTE: While these problems are made by a former University Physics professor and are seen thousands of times a week, it is possible that there are typo's or other errors that nobody has yet reported to be fixed. If you are convinced that there is a problem with the solution to this question please send the details to doug@dctech.com