posted by jen on .
A merry-go-round in a playground has a mass of 200 kg and radius of 1.50 m. You apply a force F = 23 N tangentially to the edge of the merry-go-round for a time of 6.5 s. The moment of inertia of the merry-go-round is 1/2(mR2).
What is the angular acceleration of the merry-go-round?
Honor Code: This exam is intended to test your personal understanding of the material. You may use everything on the 8.01 edX site as well as any textbooks you find useful. However, any discussion with other students or searching online for solutions to these questions is a violation of the honor code. The forum will remain open for you to read existing posts but new posts will be disabled until the exam closes. We will set up a wiki page for you to inform us of any site problems. Please confine your wiki entries to technical problems only, the staff cannot answer any physics questions. Use of the wiki to post hints or answers to exam problems is a violation of the honor code.
Use Kr=.5 I w f^2